diff --git a/app/Exports/TransactionsExport.php b/app/Exports/TransactionsExport.php
new file mode 100644
index 0000000..c1c4209
--- /dev/null
+++ b/app/Exports/TransactionsExport.php
@@ -0,0 +1,67 @@
+<?php
+
+namespace App\Exports;
+
+use App\Enums\TransactionStatus;
+use App\Models\Transaction;
+use Illuminate\Database\Eloquent\Builder;
+
+final class TransactionsExport implements BrandedReport
+{
+    public function __construct(private readonly Builder $query) {}
+
+    public function title(): string
+    {
+        return 'Danh sách giao dịch nạp tiền';
+    }
+
+    public function query(): Builder
+    {
+        return $this->query;
+    }
+
+    public function moneyColumns(): array
+    {
+        return ['E', 'F', 'G'];
+    }
+
+    public function headings(): array
+    {
+        return [
+            'Mã giao dịch', 'Khách hàng', 'Email', 'Số điện thoại', 'Khách khai', 'Thực nhận', 'Chênh lệch',
+            'Trạng thái', 'Chứng từ', 'Người nạp', 'Ghi chú', 'Ngày tạo',
+        ];
+    }
+
+    /**
+     * @param Transaction $transaction
+     */
+    public function map($transaction): array
+    {
+        $received = $transaction->received_amount === null ? null : (int) $transaction->received_amount;
+
+        return [
+            $transaction->public_code ?? $transaction->trans,
+            $transaction->customer?->fullname,
+            $transaction->customer?->email,
+            $transaction->customer?->phone,
+            (int) $transaction->amount,
+            $received,
+            $received === null ? null : $received - (int) $transaction->amount,
+            $this->statusLabel($transaction),
+            $transaction->proof_image ? 'Có' : 'Không',
+            $transaction->user?->name ?: $transaction->user?->username,
+            $transaction->note,
+            $transaction->created_at?->format('d/m/Y H:i'),
+        ];
+    }
+
+    private function statusLabel(Transaction $transaction): string
+    {
+        if ((int) $transaction->status === TransactionStatus::PENDING->value && ! $transaction->proof_image) {
+            return 'Chưa gửi chứng từ';
+        }
+
+        return TransactionStatus::tryFrom((int) $transaction->status)?->label() ?? (string) $transaction->status;
+    }
+}
diff --git a/app/Http/Controllers/Api/Admin/Ticket/TicketController.php b/app/Http/Controllers/Api/Admin/Ticket/TicketController.php
index d93589a..0501231 100644
--- a/app/Http/Controllers/Api/Admin/Ticket/TicketController.php
+++ b/app/Http/Controllers/Api/Admin/Ticket/TicketController.php
@@ -17,26 +17,29 @@ class TicketController extends Controller
         protected TicketReplyRepositoryInterface $ticketReplyRepository,
     ) {}
 
-    /**
-     * List all tickets (paginated, filterable by status / customer_id / search).
-     */
     public function index(Request $request)
     {
+        $filters = $request->validate([
+            'status'      => ['nullable', 'array'],
+            'status.*'    => ['string', 'in:open,pending,resolved,closed'],
+            'room'        => ['nullable', 'string', 'max:50'],
+            'customer_id' => ['nullable', 'integer'],
+            'date_from'   => ['nullable', 'date'],
+            'date_to'     => ['nullable', 'date'],
+            'search'      => ['nullable', 'string', 'max:255'],
+        ]);
+
         $query = Ticket::query()
             ->with(['customer'])
-            ->latest('id');
-
-        if ($request->filled('status')) {
-            $query->where('status', $request->input('status'));
-        }
-
-        if ($request->filled('customer_id')) {
-            $query->where('customer_id', $request->input('customer_id'));
-        }
-
-        if ($request->filled('search')) {
-            $query->where('subject', 'like', '%' . $request->input('search') . '%');
-        }
+            ->latest('id')
+            ->when($filters['status'] ?? null, fn ($q, $status) => $q->whereIn('status', $status))
+            ->when($filters['room'] ?? null, fn ($q, $room) => $q->where('room', $room))
+            ->when($filters['customer_id'] ?? null, fn ($q, $id) => $q->where('customer_id', $id))
+            ->when($filters['date_from'] ?? null, fn ($q, $from) => $q->whereDate('created_at', '>=', $from))
+            ->when($filters['date_to'] ?? null, fn ($q, $to) => $q->whereDate('created_at', '<=', $to))
+            ->when($filters['search'] ?? null, fn ($q, $search) => $q->where(
+                fn ($q) => $q->where('subject', 'like', "%{$search}%")->orWhere('ticket_num', 'like', "%{$search}%")
+            ));
 
         $paginated = $query->paginate($request->input('per_page', 15));
 
diff --git a/app/Http/Controllers/Api/Admin/Transaction/AdminTransactionController.php b/app/Http/Controllers/Api/Admin/Transaction/AdminTransactionController.php
index 8e3c4f2..f35c6fe 100644
--- a/app/Http/Controllers/Api/Admin/Transaction/AdminTransactionController.php
+++ b/app/Http/Controllers/Api/Admin/Transaction/AdminTransactionController.php
@@ -3,12 +3,15 @@
 namespace App\Http\Controllers\Api\Admin\Transaction;
 
 use App\Enums\TransactionStatus;
+use App\Http\Controllers\Api\Admin\Transaction\Concerns\ExportsTransactions;
+use App\Http\Controllers\Api\Admin\Transaction\Concerns\RecordsManualDeposits;
 use App\Http\Controllers\Controller;
 use App\Mail\Customer\ManualDepositStatus;
 use App\Models\Customer;
 use App\Models\Notification;
 use App\Models\Log;
 use App\Models\Transaction;
+use Illuminate\Database\Eloquent\Builder;
 use Illuminate\Http\JsonResponse;
 use Illuminate\Http\Request;
 use Illuminate\Support\Facades\DB;
@@ -18,6 +21,9 @@ use Illuminate\Support\Facades\Storage;
 
 class AdminTransactionController extends Controller
 {
+    use ExportsTransactions;
+    use RecordsManualDeposits;
+
     public function pendingCount(): JsonResponse
     {
         $count = Transaction::where('type', 'manual')
@@ -30,23 +36,7 @@ class AdminTransactionController extends Controller
 
     public function index(Request $request): JsonResponse
     {
-        $query = Transaction::with('customer')
-            ->where('type', 'manual')
-            ->orderByDesc('created_at');
-
-        if ($request->filled('status')) {
-            $query->where('status', $request->integer('status'));
-        }
-
-        if ($request->filled('filter')) {
-            $search = $request->string('filter')->trim();
-            $query->where(function ($q) use ($search) {
-                $q->where('public_code', 'like', "%{$search}%")
-                    ->orWhereHas('customer', fn($c) => $c
-                        ->where('fullname', 'like', "%{$search}%")
-                        ->orWhere('email', 'like', "%{$search}%"));
-            });
-        }
+        $query = $this->filteredQuery($request->only(['filter', 'status']))->with('user');
 
         $perPage = $request->integer('per_page', 15);
         $paginated = $query->paginate($perPage);
@@ -66,6 +56,7 @@ class AdminTransactionController extends Controller
             'status_label' => TransactionStatus::from((int) $t->status)->label(),
             'proof_image'  => $t->proof_image_urls[0] ?? null,
             'created_at'   => $t->created_at?->toISOString(),
+            'created_by'   => $t->user?->name ?: $t->user?->username,
             'customer'     => $t->customer ? [
                 'uuid'     => $t->customer->uuid,
                 'fullname' => $t->customer->fullname,
@@ -331,6 +322,42 @@ class AdminTransactionController extends Controller
         return response()->json(['error' => false, 'message' => 'Đã xoá giao dịch']);
     }
 
+    private function filteredQuery(array $filters): Builder
+    {
+        $query = Transaction::with('customer')
+            ->where('type', 'manual')
+            ->orderByDesc('created_at');
+
+        $status = $filters['status'] ?? null;
+        if ($status !== null && $status !== '' && $status !== []) {
+            $query->whereIn('status', array_map('intval', (array) $status));
+        }
+
+        $search = trim((string) ($filters['filter'] ?? ''));
+        if ($search !== '') {
+            $query->where(function ($q) use ($search) {
+                $q->where('public_code', 'like', "%{$search}%")
+                    ->orWhereHas('customer', fn($c) => $c
+                        ->where('fullname', 'like', "%{$search}%")
+                        ->orWhere('email', 'like', "%{$search}%"));
+            });
+        }
+
+        if (! empty($filters['customer_id'])) {
+            $query->where('customer_id', (int) $filters['customer_id']);
+        }
+
+        if (! empty($filters['date_from'])) {
+            $query->whereDate('created_at', '>=', $filters['date_from']);
+        }
+
+        if (! empty($filters['date_to'])) {
+            $query->whereDate('created_at', '<=', $filters['date_to']);
+        }
+
+        return $query;
+    }
+
     private function releasePending(Customer $customer, Transaction $transaction, int $amount): void
     {
         if ($transaction->proof_image) {
diff --git a/app/Http/Controllers/Api/Admin/Transaction/Concerns/ExportsTransactions.php b/app/Http/Controllers/Api/Admin/Transaction/Concerns/ExportsTransactions.php
new file mode 100644
index 0000000..fb44052
--- /dev/null
+++ b/app/Http/Controllers/Api/Admin/Transaction/Concerns/ExportsTransactions.php
@@ -0,0 +1,20 @@
+<?php
+
+namespace App\Http\Controllers\Api\Admin\Transaction\Concerns;
+
+use App\Exports\BrandedReportWriter;
+use App\Exports\TransactionsExport;
+use App\Http\Requests\BillingExportRequest;
+use Symfony\Component\HttpFoundation\BinaryFileResponse;
+
+trait ExportsTransactions
+{
+    public function export(BillingExportRequest $request, BrandedReportWriter $writer): BinaryFileResponse
+    {
+        $query = $this->filteredQuery(
+            $request->safe()->only(['filter', 'status', 'date_from', 'date_to', 'customer_id'])
+        )->with('user');
+
+        return $writer->download(new TransactionsExport($query), 'giao-dich-' . now()->format('Y-m-d-His') . '.xlsx');
+    }
+}
diff --git a/app/Http/Controllers/Api/Admin/Transaction/Concerns/RecordsManualDeposits.php b/app/Http/Controllers/Api/Admin/Transaction/Concerns/RecordsManualDeposits.php
new file mode 100644
index 0000000..924fcda
--- /dev/null
+++ b/app/Http/Controllers/Api/Admin/Transaction/Concerns/RecordsManualDeposits.php
@@ -0,0 +1,98 @@
+<?php
+
+namespace App\Http\Controllers\Api\Admin\Transaction\Concerns;
+
+use App\Enums\TransactionStatus;
+use App\Models\Customer;
+use App\Models\Log;
+use App\Models\Notification;
+use App\Models\Transaction;
+use Illuminate\Http\JsonResponse;
+use Illuminate\Http\Request;
+use Illuminate\Support\Facades\Auth;
+use Illuminate\Support\Facades\DB;
+use Illuminate\Support\Facades\Storage;
+use Illuminate\Support\Str;
+
+trait RecordsManualDeposits
+{
+    public function store(Request $request): JsonResponse
+    {
+        $data = $request->validate([
+            'customer_id' => 'required|integer|exists:customers,id',
+            'amount'      => 'required|integer|min:1000',
+            'note'        => 'nullable|string|max:1000',
+            'proof'       => 'nullable|image|mimes:jpeg,jpg,png,webp|max:5120',
+        ]);
+
+        $admin = Auth::guard('admin')->user();
+        $proofPath = $request->file('proof')?->store('deposit-proofs/' . $data['customer_id'], 'local');
+
+        try {
+            $transaction = DB::transaction(function () use ($data, $admin, $proofPath, $request) {
+                $customer = Customer::whereKey($data['customer_id'])->lockForUpdate()->firstOrFail();
+                $amount = (int) $data['amount'];
+                $creditEarned = Customer::creditFor($amount);
+
+                $publicCode = Transaction::newPublicCode('MAN');
+
+                $transaction = Transaction::create([
+                    'uuid'            => (string) Str::uuid(),
+                    'public_code'     => $publicCode,
+                    'trans'           => str_replace('-', '', $publicCode),
+                    'amount'          => $amount,
+                    'received_amount' => $amount,
+                    'customer_id'     => $customer->id,
+                    'user_id'         => $admin?->id,
+                    'type'            => 'manual',
+                    'status'          => TransactionStatus::COMPLETED->value,
+                    'note'            => trim($data['note'] ?? '') ?: null,
+                    'proof_image'     => $proofPath,
+                ]);
+
+                $customer->total += $amount;
+                $customer->credit += $creditEarned;
+                $customer->save();
+
+                Log::create([
+                    'agent'       => 'admin',
+                    'client_ip'   => $request->ip(),
+                    'description' => sprintf(
+                        '%s nạp tiền thủ công cho khách hàng: %s VNĐ (+%d credit) - %s',
+                        $admin?->username ?? $admin?->email ?? 'Admin',
+                        number_format($amount),
+                        $creditEarned,
+                        $transaction->public_code,
+                    ),
+                    'customer_id' => $customer->id,
+                ]);
+
+                Notification::notifyCustomer($customer, [
+                    'type'  => 'deposit_success',
+                    'title' => 'Nạp tiền thành công',
+                    'body'  => 'Giao dịch ' . $transaction->public_code . ' đã được cộng vào tài khoản.',
+                    'link'  => '/lich-su-giao-dich/' . $transaction->uuid,
+                    'data'  => [
+                        'transaction_uuid' => $transaction->uuid,
+                        'amount'           => $amount,
+                        'public_code'      => $transaction->public_code,
+                    ],
+                ]);
+
+                return $transaction;
+            });
+        } catch (\Throwable $e) {
+            if ($proofPath) {
+                Storage::disk('local')->delete($proofPath);
+            }
+
+            throw $e;
+        }
+
+        return response()->json([
+            'error'   => false,
+            'message' => 'Đã nạp tiền cho khách hàng',
+            'data'    => ['uuid' => $transaction->uuid, 'public_code' => $transaction->public_code],
+        ]);
+    }
+}
diff --git a/routes/api/admin/billing.php b/routes/api/admin/billing.php
index 01e40f4..a7f4a8e 100644
--- a/routes/api/admin/billing.php
+++ b/routes/api/admin/billing.php
@@ -90,6 +90,8 @@ Route::prefix('transactions')
     ->controller(AdminTransactionController::class)
     ->group(function () {
         Route::get('/', 'index')->middleware('perm:customer.view');
+        Route::post('/', 'store')->middleware('perm:customer.edit');
+        Route::get('export', 'export')->middleware('perm:customer.view');
         Route::get('pending-count', 'pendingCount')->middleware('perm:customer.view');
         Route::post('{uuid}/approve', 'approve')->middleware('perm:customer.edit');
         Route::post('{uuid}/reject', 'reject')->middleware('perm:customer.edit');
diff --git a/tests/Feature/Api/Admin/Transaction/AdminManualDepositTest.php b/tests/Feature/Api/Admin/Transaction/AdminManualDepositTest.php
new file mode 100644
index 0000000..65d5a8e
--- /dev/null
+++ b/tests/Feature/Api/Admin/Transaction/AdminManualDepositTest.php
@@ -0,0 +1,86 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Tests\Feature\Api\Admin\Transaction;
+
+use App\Models\Customer;
+use App\Models\Transaction;
+use App\Models\User;
+use Illuminate\Foundation\Testing\RefreshDatabase;
+use Illuminate\Http\UploadedFile;
+use Illuminate\Support\Facades\Storage;
+use PhpOffice\PhpSpreadsheet\IOFactory;
+use Spatie\Permission\Models\Role;
+use Tests\TestCase;
+
+class AdminManualDepositTest extends TestCase
+{
+    use RefreshDatabase;
+
+    private User $admin;
+
+    protected function setUp(): void
+    {
+        parent::setUp();
+
+        Role::firstOrCreate(['name' => 'Full Administrator', 'guard_name' => 'admin']);
+        $this->admin = User::factory()->create();
+        $this->admin->assignRole('Full Administrator');
+    }
+
+    public function test_admin_deposit_credits_customer_and_stores_proof(): void
+    {
+        Storage::fake('local');
+        $customer = Customer::factory()->create(['total' => 100_000, 'credit' => 0, 'total_pending' => 0]);
+
+        $this->actingAs($this->admin, 'admin')->post('/api/v1/administrator/transactions', [
+            'customer_id' => $customer->id,
+            'amount' => 500_000,
+            'note' => 'CK Vietcombank',
+            'proof' => UploadedFile::fake()->image('proof.png'),
+        ])->assertOk();
+
+        $customer->refresh();
+        $this->assertSame(600_000, (int) $customer->total);
+        $this->assertSame(5_000, (int) $customer->credit);
+        $this->assertSame(0, (int) $customer->total_pending);
+
+        $transaction = Transaction::where('customer_id', $customer->id)->sole();
+        $this->assertSame('manual', $transaction->type);
+        $this->assertSame(1, (int) $transaction->status);
+        $this->assertSame(500_000, (int) $transaction->received_amount);
+        $this->assertSame($this->admin->id, $transaction->user_id);
+        $this->assertStringStartsWith('MAN-', $transaction->public_code);
+        Storage::disk('local')->assertExists($transaction->proof_image);
+
+        $this->actingAs($this->admin, 'admin')->getJson('/api/v1/administrator/transactions')
+            ->assertJsonPath('data.items.0.created_by', $this->admin->name ?: $this->admin->username);
+    }
+
+    public function test_export_writes_filtered_rows_into_template(): void
+    {
+        $customer = Customer::factory()->create();
+        $other = Customer::factory()->create();
+        foreach ([$customer, $customer, $other] as $owner) {
+            $this->actingAs($this->admin, 'admin')
+                ->post('/api/v1/administrator/transactions', ['customer_id' => $owner->id, 'amount' => 10_000])
+                ->assertOk();
+        }
+
+        $all = $this->exportedSheet('/api/v1/administrator/transactions/export');
+        $this->assertSame('DANH SÁCH GIAO DỊCH NẠP TIỀN', $all->getCell('A6')->getValue());
+        $this->assertSame('Mã giao dịch', $all->getCell('A7')->getValue());
+        $this->assertSame(10, $all->getHighestDataRow());
+
+        $this->assertSame(9, $this->exportedSheet("/api/v1/administrator/transactions/export?customer_id={$customer->id}")->getHighestDataRow());
+        $this->assertSame(7, $this->exportedSheet('/api/v1/administrator/transactions/export?status[]=0')->getHighestDataRow());
+    }
+
+    private function exportedSheet(string $url): \PhpOffice\PhpSpreadsheet\Worksheet\Worksheet
+    {
+        $response = $this->actingAs($this->admin, 'admin')->get($url)->assertOk();
+
+        return IOFactory::load($response->baseResponse->getFile()->getPathname())->getActiveSheet();
+    }
+}