diff --git a/src/app/pages/cart/cart.component.ts b/src/app/pages/cart/cart.component.ts
index 2cd1277..a21e108 100644
--- a/src/app/pages/cart/cart.component.ts
+++ b/src/app/pages/cart/cart.component.ts
@@ -361,7 +361,7 @@ export class CartComponent implements OnDestroy {
           : item.price,
         currency: item.currency,
         quantity: item.quantity,
-        ...(item.selectedDelivery ? { delivery: item.selectedDelivery } : {})
+        ...(item.selectedDelivery ? { delivery: [item.selectedDelivery] } : {})
       }))
     };
     
@@ -430,7 +430,7 @@ export class CartComponent implements OnDestroy {
           : item.price,
         currency: item.currency,
         quantity: item.quantity,
-        ...(item.selectedDelivery ? { delivery: item.selectedDelivery } : {})
+        ...(item.selectedDelivery ? { delivery: [item.selectedDelivery] } : {})
       }))
     };
     
@@ -490,7 +490,7 @@ export class CartComponent implements OnDestroy {
     return `order_${timestamp}_${random}`;
   }
 
-  private buildPaymentItems(): Array<{ itemID: number; price: number; name: string; quantity: number; delivery?: DeliveryOption }> {
+  private buildPaymentItems(): Array<{ itemID: number; price: number; name: string; quantity: number; delivery?: DeliveryOption[] }> {
     return this.items().map((item: CartItem) => {
       const unitPrice = item.discount > 0
         ? item.price * (1 - item.discount / 100)
@@ -504,7 +504,7 @@ export class CartComponent implements OnDestroy {
         price: unitPrice * item.quantity,
         name,
         quantity: item.quantity,
-        ...(item.selectedDelivery ? { delivery: item.selectedDelivery } : {}),
+        ...(item.selectedDelivery ? { delivery: [item.selectedDelivery] } : {}),
       };
     });
   }
diff --git a/src/app/services/api.service.ts b/src/app/services/api.service.ts
index 9d3f8ba..14aa901 100644
--- a/src/app/services/api.service.ts
+++ b/src/app/services/api.service.ts
@@ -42,7 +42,7 @@ export interface CartPaymentRequest {
   siteorderID: string;
   redirectUrl: string;
   telegramUsername: string;
-  items: Array<{ itemID: number; price: number; name: string; quantity?: number; delivery?: DeliveryOption }>;
+  items: Array<{ itemID: number; price: number; name: string; quantity?: number; delivery?: DeliveryOption[] }>;
 }
 
 export interface QrDynamicStatusResponse {
@@ -556,7 +556,7 @@ export class ApiService {
     email: string;
     phone?: string;
     telegramUserId: string | null;
-    items: Array<{ itemID: number; name: string; price: number; currency: string; quantity?: number; delivery?: DeliveryOption }>;
+    items: Array<{ itemID: number; name: string; price: number; currency: string; quantity?: number; delivery?: DeliveryOption[] }>;
   }): Observable<{ message: string }> {
     return this.http.post<{ message: string }>(`${this.baseUrl}/purchase-email`, emailData);
   }