diff --git a/Modules/Helpdesk/Database/Migrations/2026_06_17_123000_add_deletion_audit_fields_to_helpdesk_comments.php b/Modules/Helpdesk/Database/Migrations/2026_06_17_123000_add_deletion_audit_fields_to_helpdesk_comments.php
new file mode 100644
index 00000000..9436569a
--- /dev/null
+++ b/Modules/Helpdesk/Database/Migrations/2026_06_17_123000_add_deletion_audit_fields_to_helpdesk_comments.php
@@ -0,0 +1,36 @@
+<?php
+
+declare(strict_types=1);
+
+use Illuminate\Database\Migrations\Migration;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Support\Facades\Schema;
+
+return new class extends Migration
+{
+    public function up(): void
+    {
+        Schema::table('helpdesk_comments', static function (Blueprint $table): void {
+            if (! Schema::hasColumn('helpdesk_comments', 'deleted_by')) {
+                $table->foreignId('deleted_by')->nullable()->after('tombstoned_at')->constrained('users')->nullOnDelete();
+            }
+
+            if (! Schema::hasColumn('helpdesk_comments', 'delete_reason')) {
+                $table->string('delete_reason', 255)->nullable()->after('deleted_by');
+            }
+        });
+    }
+
+    public function down(): void
+    {
+        Schema::table('helpdesk_comments', static function (Blueprint $table): void {
+            if (Schema::hasColumn('helpdesk_comments', 'deleted_by')) {
+                $table->dropConstrainedForeignId('deleted_by');
+            }
+
+            if (Schema::hasColumn('helpdesk_comments', 'delete_reason')) {
+                $table->dropColumn('delete_reason');
+            }
+        });
+    }
+};
diff --git a/Modules/Helpdesk/Http/Controllers/TicketCommentDeleteController.php b/Modules/Helpdesk/Http/Controllers/TicketCommentDeleteController.php
new file mode 100644
index 00000000..4f8f578e
--- /dev/null
+++ b/Modules/Helpdesk/Http/Controllers/TicketCommentDeleteController.php
@@ -0,0 +1,75 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Modules\Helpdesk\Http\Controllers;
+
+use App\Http\Controllers\Controller;
+use Illuminate\Http\RedirectResponse;
+use Illuminate\Http\Request;
+use Illuminate\Support\Facades\DB;
+use Illuminate\Support\Facades\Schema;
+use Modules\Helpdesk\Models\Comment;
+use Modules\Helpdesk\Models\Ticket;
+
+final class TicketCommentDeleteController extends Controller
+{
+    /**
+     * Tombstone a ticket response. Only MPBA/platform super administrators may delete responses.
+     */
+    public function __invoke(Request $request, Ticket $ticket, Comment $comment): RedirectResponse
+    {
+        $user = $request->user();
+
+        abort_unless($user !== null && method_exists($user, 'isMpbaPlatformAdmin') && $user->isMpbaPlatformAdmin(), 403);
+        abort_unless((int) $comment->ticket_id === (int) $ticket->id, 404);
+
+        DB::transaction(function () use ($comment, $ticket, $user): void {
+            $updates = [];
+
+            if (Schema::hasColumn('helpdesk_comments', 'tombstoned_at')) {
+                $updates['tombstoned_at'] = now();
+            }
+
+            if (Schema::hasColumn('helpdesk_comments', 'deleted_by')) {
+                $updates['deleted_by'] = (int) $user->id;
+            }
+
+            if (Schema::hasColumn('helpdesk_comments', 'delete_reason')) {
+                $updates['delete_reason'] = 'Deleted by MPBA platform administrator.';
+            }
+
+            if (Schema::hasColumn('helpdesk_comments', 'sync_sequence')) {
+                $updates['sync_sequence'] = ((int) ($comment->sync_sequence ?? 0)) + 1;
+            }
+
+            if (Schema::hasColumn('helpdesk_comments', 'sync_hash')) {
+                $updates['sync_hash'] = hash('sha256', implode('|', [
+                    (string) ($comment->guid ?? $comment->id),
+                    'deleted',
+                    now()->toISOString(),
+                ]));
+            }
+
+            if (Schema::hasColumn('helpdesk_comments', 'updated_at')) {
+                $updates['updated_at'] = now();
+            }
+
+            if ($updates !== []) {
+                DB::table('helpdesk_comments')
+                    ->where('id', $comment->id)
+                    ->update($updates);
+            } else {
+                $comment->delete();
+            }
+
+            if (Schema::hasColumn('helpdesk_tickets', 'last_activity_at')) {
+                $ticket->forceFill(['last_activity_at' => now()])->save();
+            }
+        });
+
+        return redirect()
+            ->route('helpdesk.tickets.show', $ticket)
+            ->with('ticket-comment-deleted', 'Response deleted.');
+    }
+}
diff --git a/Modules/Helpdesk/Livewire/TicketShow.php b/Modules/Helpdesk/Livewire/TicketShow.php
index c057ebcd..5e0979d1 100644
--- a/Modules/Helpdesk/Livewire/TicketShow.php
+++ b/Modules/Helpdesk/Livewire/TicketShow.php
@@ -303,6 +303,9 @@ final class TicketShow extends Component
 
         $comments = Comment::query()
             ->where('ticket_id', $ticket->id)
+            ->when(Schema::hasColumn('helpdesk_comments', 'tombstoned_at'), static function ($query): void {
+                $query->whereNull('tombstoned_at');
+            })
             ->when(! $this->canSeeInternalNotes(), static function ($query): void {
                 $query->where('is_internal', false);
             })
diff --git a/Modules/Helpdesk/Models/Comment.php b/Modules/Helpdesk/Models/Comment.php
index 6d33816a..1229a72b 100644
--- a/Modules/Helpdesk/Models/Comment.php
+++ b/Modules/Helpdesk/Models/Comment.php
@@ -35,6 +35,8 @@ final class Comment extends Model
         'replicated_at',
         'synced_at',
         'tombstoned_at',
+        'deleted_by',
+        'delete_reason',
     ];
 
     /** @var array<string, string> */
@@ -44,6 +46,7 @@ final class Comment extends Model
         'replicated_at' => 'datetime',
         'synced_at' => 'datetime',
         'tombstoned_at' => 'datetime',
+        'deleted_by' => 'integer',
     ];
 
     /** @return BelongsTo<Ticket, Comment> */
@@ -64,6 +67,12 @@ final class Comment extends Model
         return $this->hasMany(self::class, 'parent_id')->oldest();
     }
 
+    /** @return BelongsTo<User, Comment> */
+    public function deleter(): BelongsTo
+    {
+        return $this->belongsTo(User::class, 'deleted_by');
+    }
+
     /** @return BelongsTo<User, Comment> */
     public function user(): BelongsTo
     {
diff --git a/Modules/Helpdesk/Resources/views/livewire/ticket-create.blade.php b/Modules/Helpdesk/Resources/views/livewire/ticket-create.blade.php
index 92997585..4fdc931d 100644
--- a/Modules/Helpdesk/Resources/views/livewire/ticket-create.blade.php
+++ b/Modules/Helpdesk/Resources/views/livewire/ticket-create.blade.php
@@ -3,11 +3,6 @@
         'resources/css/app.css',
         'resources/js/app.js',
     ])
-    @vite([
-        'Resources/assets/css/app.css',
-        'Resources/assets/js/app.js',
-    ], 'build/helpdesk')
-
     @include('helpdesk::partials.page-header', [
         'eyebrow' => 'Helpdesk',
         'title' => 'Create ticket',
diff --git a/Modules/Helpdesk/Resources/views/livewire/ticket-show.blade.php b/Modules/Helpdesk/Resources/views/livewire/ticket-show.blade.php
index 6a75da1f..6a7b8be6 100644
--- a/Modules/Helpdesk/Resources/views/livewire/ticket-show.blade.php
+++ b/Modules/Helpdesk/Resources/views/livewire/ticket-show.blade.php
@@ -181,34 +181,31 @@
 
     .hd-helpdesk-surface [data-helpdesk-file-button] {
         display: inline-flex !important;
-        width: auto !important;
-        min-width: 144px !important;
-        height: 42px !important;
         align-items: center !important;
         justify-content: center !important;
-        align-self: center !important;
-        gap: 9px !important;
-        border-radius: 12px !important;
-        border: 1px solid rgba(34, 197, 94, 0.55) !important;
-        background: linear-gradient(135deg, #16a34a, #22c55e) !important;
+        gap: 10px !important;
+        min-width: 168px !important;
+        height: 48px !important;
+        padding: 0 22px !important;
+        border: 1px solid rgba(134, 239, 172, 0.70) !important;
+        border-radius: 14px !important;
+        background: linear-gradient(135deg, #15803d 0%, #16a34a 55%, #22c55e 100%) !important;
         color: #ffffff !important;
-        box-shadow: 0 10px 22px rgba(22, 163, 74, 0.24), inset 0 1px 0 rgba(255, 255, 255, 0.18) !important;
-        font-size: 0.88rem !important;
-        font-weight: 800 !important;
+        box-shadow: 0 14px 28px rgba(22, 163, 74, 0.28), inset 0 1px 0 rgba(255, 255, 255, 0.20) !important;
+        font-size: 0.92rem !important;
+        font-weight: 900 !important;
         line-height: 1 !important;
-        letter-spacing: 0.005em !important;
-        padding: 0 16px !important;
+        text-align: center !important;
         white-space: nowrap !important;
-        vertical-align: middle !important;
-        transition: border-color 150ms ease, background 150ms ease, color 150ms ease, transform 150ms ease, box-shadow 150ms ease !important;
+        cursor: pointer !important;
+        transition: transform 150ms ease, box-shadow 150ms ease, background 150ms ease !important;
     }
 
     .hd-helpdesk-surface [data-helpdesk-file-button]:hover {
         transform: translateY(-1px) !important;
-        border-color: rgba(134, 239, 172, 0.85) !important;
-        background: linear-gradient(135deg, #15803d, #16a34a) !important;
+        background: linear-gradient(135deg, #166534 0%, #15803d 55%, #16a34a 100%) !important;
         color: #ffffff !important;
-        box-shadow: 0 12px 26px rgba(22, 163, 74, 0.32), inset 0 1px 0 rgba(255, 255, 255, 0.20) !important;
+        box-shadow: 0 16px 32px rgba(22, 163, 74, 0.36), inset 0 1px 0 rgba(255, 255, 255, 0.22) !important;
     }
 
     .hd-helpdesk-surface [data-helpdesk-file-button] i,
@@ -217,15 +214,18 @@
         align-items: center !important;
         justify-content: center !important;
         line-height: 1 !important;
+        margin: 0 !important;
+        padding: 0 !important;
+        vertical-align: middle !important;
     }
 
     .hd-helpdesk-surface [data-helpdesk-file-button] i {
-        height: 18px !important;
-        width: 18px !important;
-        border-radius: 6px !important;
-        background: rgba(255, 255, 255, 0.16) !important;
+        width: 22px !important;
+        height: 22px !important;
+        border-radius: 8px !important;
+        background: rgba(255, 255, 255, 0.18) !important;
         color: #ffffff !important;
-        font-size: 0.74rem !important;
+        font-size: 0.8rem !important;
     }
 
     .hd-helpdesk-surface .hd-select {
@@ -505,45 +505,44 @@
                     @endif
                 @endcan
 
-                <details class="mt-5 overflow-hidden rounded-2xl border border-zinc-200 bg-zinc-50/80 shadow-sm dark:border-zinc-800 dark:bg-zinc-950/40">
-                    <summary class="group flex cursor-pointer list-none items-center justify-between gap-4 px-5 py-4 transition hover:bg-zinc-100/80 dark:hover:bg-zinc-900/70 [&::-webkit-details-marker]:hidden">
-                        <span class="flex min-w-0 items-center gap-3">
-                            <span class="inline-flex h-9 w-9 shrink-0 items-center justify-center rounded-xl border border-blue-200 bg-blue-50 text-blue-700 dark:border-blue-900/70 dark:bg-blue-950/50 dark:text-blue-300">
+                <details class="mt-5 overflow-hidden rounded-[1.5rem] border border-zinc-200 bg-white/80 shadow-sm dark:border-zinc-800 dark:bg-zinc-950/50">
+                    <summary class="group flex cursor-pointer list-none items-center justify-between gap-4 bg-gradient-to-r from-slate-950 via-blue-950 to-slate-900 px-6 py-5 text-white transition hover:from-slate-900 hover:via-blue-900 hover:to-slate-900 [&::-webkit-details-marker]:hidden">
+                        <span class="flex min-w-0 items-center gap-4">
+                            <span class="inline-flex h-11 w-11 shrink-0 items-center justify-center rounded-2xl border border-blue-400/30 bg-blue-500/15 text-blue-200 shadow-inner">
                                 <i class="fa-solid fa-paperclip text-sm" aria-hidden="true"></i>
                             </span>
                             <span class="min-w-0">
-                                <span class="block text-xs font-black uppercase tracking-[0.22em] text-blue-700 dark:text-blue-300">Attachments</span>
-                                <span class="block truncate text-sm font-semibold text-zinc-600 dark:text-zinc-400">Pin screenshots, logs and supporting documents.</span>
+                                <span class="block text-xs font-black uppercase tracking-[0.28em] text-blue-200">Attachments</span>
+                                <span class="block text-xl font-black tracking-tight text-white">Supporting files</span>
+                                <span class="block truncate text-sm font-semibold text-zinc-300">Pin screenshots, logs and supporting documents.</span>
                             </span>
                         </span>
                         <span class="flex shrink-0 items-center gap-3">
-                            <span class="rounded-full border border-zinc-200 bg-white px-3 py-1 text-xs font-bold text-zinc-700 shadow-sm dark:border-zinc-700 dark:bg-zinc-900 dark:text-zinc-200" data-helpdesk-file-count>0 files</span>
-                            <i class="fa-solid fa-chevron-down text-xs text-zinc-500 transition group-open:rotate-180" aria-hidden="true"></i>
+                            <span class="rounded-full border border-white/10 bg-white/10 px-3 py-1 text-xs font-black text-white" data-helpdesk-file-count>0 files</span>
+                            <i class="fa-solid fa-chevron-down text-xs text-blue-200 transition group-open:rotate-180" aria-hidden="true"></i>
                         </span>
                     </summary>
 
-                    <div class="border-t border-zinc-200 px-5 py-5 text-sm dark:border-zinc-800">
-                        <div class="rounded-2xl border border-zinc-200 bg-white/70 p-4 shadow-sm dark:border-zinc-800 dark:bg-zinc-950/45">
-                            <div data-helpdesk-attachment-picker-row>
-                                <div class="flex min-w-0 items-center gap-3">
-                                    <span class="inline-flex h-11 w-11 shrink-0 items-center justify-center rounded-xl border border-blue-200 bg-blue-50 text-blue-700 dark:border-blue-900/70 dark:bg-blue-950/55 dark:text-blue-300">
-                                        <i class="fa-solid fa-paperclip text-sm" aria-hidden="true"></i>
+                    <div class="border-t border-zinc-200 p-6 dark:border-zinc-800">
+                        <div class="rounded-2xl border border-zinc-200 bg-zinc-50/80 p-5 shadow-sm dark:border-zinc-800 dark:bg-zinc-950/70">
+                            <div class="flex min-h-[5.25rem] flex-col gap-4 sm:flex-row sm:items-center sm:justify-between">
+                                <div class="flex min-w-0 items-center gap-4">
+                                    <span class="inline-flex h-11 w-11 shrink-0 items-center justify-center rounded-xl border border-zinc-300 bg-white text-zinc-700 dark:border-zinc-700 dark:bg-zinc-900 dark:text-zinc-200">
+                                        <i class="fa-solid fa-file-arrow-up text-sm" aria-hidden="true"></i>
                                     </span>
-
                                     <span class="min-w-0">
-                                        <span class="block text-sm font-bold text-zinc-900 dark:text-zinc-100">Attach supporting files</span>
+                                        <span class="block text-sm font-black text-zinc-900 dark:text-zinc-100">Attach supporting evidence</span>
                                         <span class="block truncate text-xs font-semibold text-zinc-500 dark:text-zinc-400" data-helpdesk-file-label>No files attached</span>
                                     </span>
                                 </div>
 
-                                <label
-                                    data-helpdesk-file-button
-                                    class="cursor-pointer"
-                                >
-                                    <i class="fa-solid fa-paperclip" aria-hidden="true"></i>
-                                    <span>Attach files</span>
-                                    <input name="attachments[]" type="file" multiple class="sr-only" data-helpdesk-file-input>
-                                </label>
+                                <div class="flex shrink-0 items-center justify-center sm:min-w-[190px]">
+                                    <label data-helpdesk-file-button>
+                                        <i class="fa-solid fa-paperclip" aria-hidden="true"></i>
+                                        <span>Attach files</span>
+                                        <input name="attachments[]" type="file" multiple class="sr-only" data-helpdesk-file-input>
+                                    </label>
+                                </div>
                             </div>
                         </div>
                         @error('attachments.*') <div class="mt-2 text-sm text-red-600">{{ $message }}</div> @enderror
diff --git a/Modules/Helpdesk/Resources/views/partials/comment-thread.blade.php b/Modules/Helpdesk/Resources/views/partials/comment-thread.blade.php
index 913496af..dd25b6e0 100644
--- a/Modules/Helpdesk/Resources/views/partials/comment-thread.blade.php
+++ b/Modules/Helpdesk/Resources/views/partials/comment-thread.blade.php
@@ -118,11 +118,22 @@
                     @endif
 
                     @if ($currentTicket !== null)
-                        <div class="mt-4 flex justify-end">
+                        <div class="mt-4 flex flex-wrap justify-end gap-2">
                             <button type="button" dusk="reply-to-comment-{{ $comment->id }}" data-helpdesk-reply-toggle="{{ $replyFormId }}" class="inline-flex items-center justify-center rounded-lg bg-blue-600 px-3 py-2 text-xs font-bold text-white shadow-sm transition hover:bg-blue-700 focus:outline-none focus:ring-2 focus:ring-blue-400/70">
                                 <i class="fa-solid fa-reply mr-2" aria-hidden="true"></i>
                                 Respond
                             </button>
+
+                            @if (auth()->user()?->isMpbaPlatformAdmin())
+                                <form method="POST" action="{{ route('helpdesk.tickets.comments.destroy', [$currentTicket, $comment]) }}" onsubmit="return confirm('Delete this response? This will remove it from the visible conversation but keep the replication identity/audit trail.');">
+                                    @csrf
+                                    @method('DELETE')
+                                    <button type="submit" dusk="delete-comment-{{ $comment->id }}" class="inline-flex items-center justify-center rounded-lg bg-red-600 px-3 py-2 text-xs font-bold text-white shadow-sm transition hover:bg-red-700 focus:outline-none focus:ring-2 focus:ring-red-400/70">
+                                        <i class="fa-solid fa-trash-can mr-2" aria-hidden="true"></i>
+                                        Delete
+                                    </button>
+                                </form>
+                            @endif
                         </div>
 
                         <form id="{{ $replyFormId }}" method="POST" action="{{ route('helpdesk.tickets.comments.store', $currentTicket) }}" enctype="multipart/form-data" class="mt-4 hidden rounded-xl border border-red-200 bg-red-50/60 p-4 dark:border-red-900 dark:bg-red-950/20" data-helpdesk-comment-form>
@@ -151,14 +162,33 @@
                                 @endif
                             @endcan
 
-                            <div class="mt-4 rounded-xl border border-dashed border-blue-300 p-3 dark:border-blue-800">
-                                <label class="inline-flex cursor-pointer items-center gap-2 rounded-lg bg-blue-600 px-3 py-2 text-xs font-bold text-white shadow-sm hover:bg-blue-700">
-                                    <i class="fa-solid fa-thumbtack" aria-hidden="true"></i>
-                                    Pin attachments
-                                    <input name="attachments[]" type="file" multiple class="sr-only" data-helpdesk-file-input>
-                                </label>
-                                <span class="ml-2 text-xs font-semibold text-zinc-500" data-helpdesk-file-label>No files pinned</span>
-                            </div>
+                            <details class="mt-4 overflow-hidden rounded-xl border border-zinc-200 bg-white/80 shadow-sm dark:border-zinc-800 dark:bg-zinc-950/50">
+                                <summary class="group flex cursor-pointer list-none items-center justify-between gap-3 bg-gradient-to-r from-slate-950 via-blue-950 to-slate-900 px-4 py-3 text-white [&::-webkit-details-marker]:hidden">
+                                    <span class="flex min-w-0 items-center gap-3">
+                                        <span class="inline-flex h-9 w-9 shrink-0 items-center justify-center rounded-xl border border-blue-400/30 bg-blue-500/15 text-blue-200">
+                                            <i class="fa-solid fa-paperclip text-xs" aria-hidden="true"></i>
+                                        </span>
+                                        <span class="min-w-0">
+                                            <span class="block text-[10px] font-black uppercase tracking-[0.22em] text-blue-200">Attachments</span>
+                                            <span class="block truncate text-xs font-semibold text-zinc-300">Pin response files.</span>
+                                        </span>
+                                    </span>
+                                    <span class="flex shrink-0 items-center gap-2">
+                                        <span class="rounded-full border border-white/10 bg-white/10 px-2.5 py-1 text-[10px] font-black text-white" data-helpdesk-file-count>0 files</span>
+                                        <i class="fa-solid fa-chevron-down text-[10px] text-blue-200 transition group-open:rotate-180" aria-hidden="true"></i>
+                                    </span>
+                                </summary>
+                                <div class="p-4">
+                                    <div class="flex min-h-[4.5rem] flex-col gap-3 rounded-xl border border-zinc-200 bg-zinc-50/80 p-4 dark:border-zinc-800 dark:bg-zinc-950/70 sm:flex-row sm:items-center sm:justify-between">
+                                        <span class="text-xs font-semibold text-zinc-500 dark:text-zinc-400" data-helpdesk-file-label>No files attached</span>
+                                        <label data-helpdesk-file-button>
+                                            <i class="fa-solid fa-paperclip" aria-hidden="true"></i>
+                                            <span>Attach files</span>
+                                            <input name="attachments[]" type="file" multiple class="sr-only" data-helpdesk-file-input>
+                                        </label>
+                                    </div>
+                                </div>
+                            </details>
 
                             <div class="mt-4 flex justify-end gap-2">
                                 <button type="button" data-helpdesk-reply-toggle="{{ $replyFormId }}" class="inline-flex items-center justify-center rounded-lg bg-slate-600 px-3 py-2 text-xs font-bold text-white shadow-sm transition hover:bg-slate-700 focus:outline-none focus:ring-2 focus:ring-slate-400/70">Cancel</button>
diff --git a/Modules/Helpdesk/Routes/web.php b/Modules/Helpdesk/Routes/web.php
index a9127b7a..a2ab1b46 100644
--- a/Modules/Helpdesk/Routes/web.php
+++ b/Modules/Helpdesk/Routes/web.php
@@ -6,6 +6,7 @@ use Illuminate\Support\Facades\Route;
 use Modules\Helpdesk\Http\Controllers\AttachmentDownloadController;
 use Modules\Helpdesk\Http\Controllers\HelpdeskController;
 use Modules\Helpdesk\Http\Controllers\TicketControlsController;
+use Modules\Helpdesk\Http\Controllers\TicketCommentDeleteController;
 use Modules\Helpdesk\Http\Controllers\TicketCommentStoreController;
 use Modules\Helpdesk\Http\Controllers\TicketStoreController;
 use Modules\Helpdesk\Http\Controllers\WorkflowOpenController;
@@ -31,6 +32,7 @@ Route::post('/tickets/{ticket}/agent', [TicketControlsController::class, 'update
 Route::post('/tickets/{ticket}/status', [TicketControlsController::class, 'updateStatus'])->name('tickets.status.update');
 Route::post('/tickets/{ticket}/priority', [TicketControlsController::class, 'updatePriority'])->name('tickets.priority.update');
 Route::post('/tickets/{ticket}/comments', TicketCommentStoreController::class)->name('tickets.comments.store');
+Route::delete('/tickets/{ticket}/comments/{comment}', TicketCommentDeleteController::class)->name('tickets.comments.destroy');
 Route::get('/tickets/{ticket}', TicketShow::class)->name('tickets.show');
 Route::get('/attachments/{attachment}/download', AttachmentDownloadController::class)
     ->whereNumber('attachment')
diff --git a/Modules/Helpdesk/Tests/Feature/TicketConversationTest.php b/Modules/Helpdesk/Tests/Feature/TicketConversationTest.php
index ed93bd6d..e8002a84 100644
--- a/Modules/Helpdesk/Tests/Feature/TicketConversationTest.php
+++ b/Modules/Helpdesk/Tests/Feature/TicketConversationTest.php
@@ -5,9 +5,13 @@ declare(strict_types=1);
 namespace Modules\Helpdesk\Tests\Feature;
 
 use Illuminate\Foundation\Testing\RefreshDatabase;
+use App\Models\Company;
+use Illuminate\Http\UploadedFile;
 use Illuminate\Support\Facades\Mail;
+use Illuminate\Support\Facades\Storage;
 use Livewire\Livewire;
 use Modules\Helpdesk\Livewire\TicketShow;
+use Modules\Helpdesk\Models\Attachment;
 use Modules\Helpdesk\Models\Comment;
 use Modules\Helpdesk\Tests\Concerns\BuildsHelpdeskFixtures;
 use Tests\TestCase;
@@ -111,6 +115,54 @@ final class TicketConversationTest extends TestCase
         self::assertSame('RE: Parent response', $reply->subject);
     }
 
+
+    public function test_post_endpoint_accepts_multiple_comment_attachments(): void
+    {
+        Storage::fake((string) config('helpdesk.disk', 'public'));
+
+        $fixtures = $this->seedLookupData();
+        $owner = $this->user();
+        $ticket = $this->ticket(['owner' => $owner, 'status_id' => $fixtures['open']->id, 'priority_id' => $fixtures['normal']->id]);
+
+        $this->actingAs($owner)
+            ->post(route('helpdesk.tickets.comments.store', $ticket), [
+                'subject' => 'Attachments attached',
+                'commentBody' => '<p>Files attached.</p>',
+                'attachments' => [
+                    UploadedFile::fake()->create('first-log.txt', 8, 'text/plain'),
+                    UploadedFile::fake()->create('second-log.txt', 8, 'text/plain'),
+                ],
+            ])
+            ->assertRedirect(route('helpdesk.tickets.show', $ticket));
+
+        $comment = Comment::query()->where('ticket_id', $ticket->id)->firstOrFail();
+
+        self::assertSame(2, Attachment::query()->where('comment_id', $comment->id)->count());
+    }
+
+    public function test_mpba_platform_admin_can_delete_comment(): void
+    {
+        $fixtures = $this->seedLookupData();
+        $company = Company::query()->create([
+            'name' => 'MPBA Limited',
+            'slug' => 'mpba-limited',
+            'status' => 'active',
+            'timezone' => 'Europe/London',
+            'is_system_company' => true,
+        ]);
+        $admin = $this->user(['company_id' => $company->id, 'is_platform_admin' => true]);
+        $owner = $this->user(['company_id' => $company->id]);
+        $ticket = $this->ticket(['owner' => $owner, 'status_id' => $fixtures['open']->id, 'priority_id' => $fixtures['normal']->id]);
+        $comment = app(\Modules\Helpdesk\Services\TicketService::class)->comment($ticket, $owner, '<p>Delete me</p>');
+
+        $this->actingAs($admin)
+            ->delete(route('helpdesk.tickets.comments.destroy', [$ticket, $comment]))
+            ->assertRedirect(route('helpdesk.tickets.show', $ticket));
+
+        $comment->refresh();
+        self::assertNotNull($comment->tombstoned_at);
+    }
+
     public function test_agent_can_update_status_to_closed_and_priority(): void
     {
         Mail::fake();
diff --git a/Modules/Helpdesk/changelog.yaml b/Modules/Helpdesk/changelog.yaml
index b877a05b..fdf4b667 100644
--- a/Modules/Helpdesk/changelog.yaml
+++ b/Modules/Helpdesk/changelog.yaml
@@ -333,3 +333,14 @@ versions:
   date: 2026-06-17
   changes:
     - Centred the attachment chooser content vertically and changed the attachment action to a professional green button treatment.
+
+- version: 1.9.19
+  date: 2026-06-17
+  changes:
+    - Moved response attachment selection into the professional Supporting files card with a centred green attachment action.
+    - Preserved multiple file uploads for comments, responses, and response-to-response replies.
+    - Added MPBA platform administrator response deletion using replication-safe tombstoning rather than destructive removal.
+    - Added deletion audit fields for helpdesk comments.
+    - Removed direct Helpdesk Vite manifest loading from ticket create when the module build manifest is not present.
+    - Updated Helpdesk conversation feature coverage for multiple attachments and super-admin response deletion.
+    - Kept module.json version in sync with changelog.yaml.
diff --git a/Modules/Helpdesk/module.json b/Modules/Helpdesk/module.json
index 4ffbde68..9dada6e4 100644
--- a/Modules/Helpdesk/module.json
+++ b/Modules/Helpdesk/module.json
@@ -22,5 +22,5 @@
         "Modules\\Helpdesk\\Providers\\HelpdeskServiceProvider"
     ],
     "files": [],
-    "version": "1.9.18"
+    "version": "1.9.19"
 }