diff --git a/backend/app/Services/Domain/Order/OrderCancelService.php b/backend/app/Services/Domain/Order/OrderCancelService.php
index 2c02a40ddf..7a19e3ac00 100644
--- a/backend/app/Services/Domain/Order/OrderCancelService.php
+++ b/backend/app/Services/Domain/Order/OrderCancelService.php
@@ -81,8 +81,14 @@ private function adjustProductQuantities(OrderDomainObject $order): void
     {
         $attendees = $this->attendeeRepository->findWhere([
             'order_id' => $order->getId(),
-            'status' => AttendeeStatus::ACTIVE->name,
-        ]);
+        ])->filter(function (AttendeeDomainObject $attendee) use ($order) {
+            if ($order->isOrderAwaitingOfflinePayment()) {
+                return $attendee->getStatus() === AttendeeStatus::ACTIVE->name
+                    || $attendee->getStatus() === AttendeeStatus::AWAITING_PAYMENT->name;
+            }
+
+            return $attendee->getStatus() === AttendeeStatus::ACTIVE->name;
+        });
 
         $productIdCountMap = $attendees
             ->map(fn(AttendeeDomainObject $attendee) => $attendee->getProductPriceId())->countBy();
diff --git a/backend/tests/Unit/Services/Domain/Order/OrderCancelServiceTest.php b/backend/tests/Unit/Services/Domain/Order/OrderCancelServiceTest.php
index d40e0313af..50dbc68554 100644
--- a/backend/tests/Unit/Services/Domain/Order/OrderCancelServiceTest.php
+++ b/backend/tests/Unit/Services/Domain/Order/OrderCancelServiceTest.php
@@ -16,7 +16,6 @@
 use HiEvents\Services\Infrastructure\DomainEvents\DomainEventDispatcherService;
 use HiEvents\Services\Infrastructure\DomainEvents\Enums\DomainEventType;
 use HiEvents\Services\Infrastructure\DomainEvents\Events\OrderEvent;
-use HiEvents\Services\Infrastructure\Webhook\WebhookDispatchService;
 use Illuminate\Contracts\Mail\Mailer;
 use Illuminate\Database\DatabaseManager;
 use Illuminate\Support\Collection;
@@ -64,6 +63,81 @@ public function testCancelOrder(): void
         $order->shouldReceive('getEventId')->andReturn(1);
         $order->shouldReceive('getId')->andReturn(1);
         $order->shouldReceive('getEmail')->andReturn('customer@example.com');
+        $order->shouldReceive('isOrderAwaitingOfflinePayment')->andReturn(false);
+
+        $order->shouldReceive('getLocale')->andReturn('en');
+
+        $attendees = new Collection([
+            m::mock(AttendeeDomainObject::class)->shouldReceive('getproductPriceId')->andReturn(1)->mock(),
+            m::mock(AttendeeDomainObject::class)->shouldReceive('getproductPriceId')->andReturn(2)->mock(),
+        ]);
+
+        $this->attendeeRepository
+            ->shouldReceive('findWhere')
+            ->once()
+            ->with([
+                'order_id' => $order->getId(),
+            ])
+            ->andReturn($attendees);
+
+        $this->attendeeRepository->shouldReceive('updateWhere')->once();
+
+        $this->productQuantityService->shouldReceive('decreaseQuantitySold')->twice();
+
+        $this->orderRepository->shouldReceive('updateWhere')->once();
+
+        $event = new EventDomainObject();
+        $event->setEventSettings(new EventSettingDomainObject());
+        $this->eventRepository
+            ->shouldReceive('loadRelation')
+            ->once()
+            ->andReturnSelf()
+            ->getMock()
+            ->shouldReceive('findById')->once()->andReturn($event);
+
+        $this->mailer->shouldReceive('to')
+            ->once()
+            ->andReturnSelf();
+
+        $this->mailer->shouldReceive('locale')
+            ->once()
+            ->andReturnSelf();
+
+        $this->mailer->shouldReceive('send')->once()->withArgs(function ($mail) {
+            return $mail instanceof OrderCancelled;
+        });
+
+        $this->domainEventDispatcherService->shouldReceive('dispatch')
+            ->withArgs(function (OrderEvent $event) use ($order) {
+                return $event->type === DomainEventType::ORDER_CANCELLED
+                    && $event->orderId === $order->getId();
+            })
+            ->once();
+
+        $this->databaseManager->shouldReceive('transaction')->once()->andReturnUsing(function ($callback) {
+            $callback();
+        });
+
+        $attendees->each(function ($attendee) {
+            $attendee->shouldReceive('getStatus')->andReturn(AttendeeStatus::ACTIVE->name);
+        });
+
+        try {
+            $this->service->cancelOrder($order);
+        } catch (Throwable $e) {
+            $this->fail("Failed to cancel order: " . $e->getMessage());
+        }
+
+        $this->assertTrue(true, "Order cancellation proceeded without throwing an exception.");
+    }
+
+    public function testCancelOrderAwaitingOfflinePayment(): void
+    {
+        $order = m::mock(OrderDomainObject::class);
+        $order->shouldReceive('getEventId')->andReturn(1);
+        $order->shouldReceive('getId')->andReturn(1);
+        $order->shouldReceive('getEmail')->andReturn('customer@example.com');
+        $order->shouldReceive('isOrderAwaitingOfflinePayment')->andReturn(true);
         $order->shouldReceive('getLocale')->andReturn('en');
 
         $attendees = new Collection([
@@ -76,7 +150,6 @@ public function testCancelOrder(): void
             ->once()
             ->with([
                 'order_id' => $order->getId(),
-                'status' => AttendeeStatus::ACTIVE->name,
             ])
             ->andReturn($attendees);
 
@@ -118,6 +191,10 @@ public function testCancelOrder(): void
             $callback();
         });
 
+        $attendees->each(function ($attendee) {
+            $attendee->shouldReceive('getStatus')->andReturn(AttendeeStatus::AWAITING_PAYMENT->name);
+        });
+
         try {
             $this->service->cancelOrder($order);
         } catch (Throwable $e) {