diff --git a/src/modules/payments/services/payment-gateway.service.ts b/src/modules/payments/services/payment-gateway.service.ts
index a09cfff..1ed717c 100644
--- a/src/modules/payments/services/payment-gateway.service.ts
+++ b/src/modules/payments/services/payment-gateway.service.ts
@@ -64,7 +64,7 @@ export class PaymentGatewayService {
             orderId,
           },
         });
-
+        this.logger.log('gatewayResponse', gatewayResponse);
         // Check gateway response code (typically 100 means success for Iranian gateways)
         if (gatewayResponse.code !== 100 && gatewayResponse.code !== 0) {
           throw new BadRequestException(`Payment gateway error: ${gatewayResponse.message || 'Unknown error'}`);
@@ -76,9 +76,12 @@ export class PaymentGatewayService {
 
         return { authority: gatewayResponse.authority };
       } catch (error) {
+        this.logger.error('Error in request to gateway', error);
+
         if (error instanceof BadRequestException) {
           throw error;
         }
+
         const errorMessage = error instanceof Error ? error.message : 'Unknown error';
         throw new BadRequestException(`Failed to connect to payment gateway: ${errorMessage}`);
       }
@@ -89,8 +92,52 @@ export class PaymentGatewayService {
   }
 
   private async requestToZarinPalGateway(requestPayment: IPaymentRequest): Promise<IPaymentResponse> {
-    const response = await axios.post<IPaymentResponse>(this.zarinpalRequestUrl, requestPayment);
-    return response.data;
+    // Transform camelCase to snake_case for Zarinpal API v4
+    const zarinpalRequest = {
+      amount: requestPayment.amount,
+      merchant_id: requestPayment.merchantId,
+      description: requestPayment.description,
+      callback_url: requestPayment.callbackUrl,
+      metadata: {
+        order_id: requestPayment.metadata.orderId,
+      },
+    };
+
+    try {
+      // Zarinpal API v4 returns response wrapped in { data: {...}, errors: [] }
+      interface ZarinpalError {
+        message?: string;
+        code?: number;
+      }
+      interface ZarinpalResponse {
+        data: IPaymentResponse;
+        errors: ZarinpalError[];
+      }
+      const response = await axios.post<ZarinpalResponse>(this.zarinpalRequestUrl, zarinpalRequest);
+
+      // Check if there are errors in the response
+      if (response.data.errors && response.data.errors.length > 0) {
+        const errorMessage = response.data.errors.map(err => err.message || JSON.stringify(err)).join(', ');
+        throw new BadRequestException(`Payment gateway error: ${errorMessage}`);
+      }
+
+      // Return the nested data object
+      if (!response.data.data) {
+        throw new BadRequestException('Payment gateway returned invalid response structure');
+      }
+
+      return response.data.data;
+    } catch (error) {
+      // Log the actual API error response for debugging
+      if (axios.isAxiosError(error) && error.response) {
+        this.logger.error('Zarinpal API error response', {
+          status: error.response.status,
+          data: JSON.stringify(error.response.data),
+          request: zarinpalRequest,
+        });
+      }
+      throw error;
+    }
   }
 
   zarinpalPaymentUrl(gateway: PaymentGatewayEnum | null, authority: string | null) {
@@ -102,12 +149,40 @@ export class PaymentGatewayService {
 
   async verifyZarinPalPayment(verifyRequest: IPaymentVerifyRequest): Promise<IPaymentVerifyResponse> {
     try {
-      const response = await axios.post<IPaymentVerifyResponse>(this.zarinpalVerifyUrl, verifyRequest);
-      if (!response.data) {
-        throw new BadRequestException('Empty response from payment gateway');
+      // Transform camelCase to snake_case for Zarinpal API v4
+      const zarinpalVerifyRequest = {
+        merchant_id: verifyRequest.merchantId,
+        amount: verifyRequest.amount,
+        authority: verifyRequest.authority,
+      };
+
+      // Zarinpal API v4 returns response wrapped in { data: {...}, errors: [] }
+      interface ZarinpalError {
+        message?: string;
+        code?: number;
       }
-      return response.data;
+      interface ZarinpalVerifyResponse {
+        data: IPaymentVerifyResponse;
+        errors: ZarinpalError[];
+      }
+      const response = await axios.post<ZarinpalVerifyResponse>(this.zarinpalVerifyUrl, zarinpalVerifyRequest);
+
+      // Check if there are errors in the response
+      if (response.data.errors && response.data.errors.length > 0) {
+        const errorMessage = response.data.errors.map(err => err.message || JSON.stringify(err)).join(', ');
+        throw new BadRequestException(`Payment gateway error: ${errorMessage}`);
+      }
+
+      // Return the nested data object
+      if (!response.data.data) {
+        throw new BadRequestException('Payment gateway returned invalid response structure');
+      }
+
+      return response.data.data;
     } catch (error) {
+      if (error instanceof BadRequestException) {
+        throw error;
+      }
       const errorMessage = error instanceof Error ? error.message : 'Unknown error';
       throw new BadRequestException(`Failed to verify payment with gateway: ${errorMessage}`);
     }
diff --git a/src/seeders/data/restaurants.data.ts b/src/seeders/data/restaurants.data.ts
index fe88fd5..94026b5 100644
--- a/src/seeders/data/restaurants.data.ts
+++ b/src/seeders/data/restaurants.data.ts
@@ -14,7 +14,7 @@ export const restaurantsData: RestaurantData[] = [
   {
     name: 'ژیوان',
     slug: 'zhivan',
-    domain: 'zhivan.example.com',
+    domain: 'https://www.zhivan.ir',
     isActive: true,
     phone: '09123456789',
     serviceArea: {
@@ -33,7 +33,7 @@ export const restaurantsData: RestaurantData[] = [
   {
     name: 'بوته',
     slug: 'boote',
-    domain: 'boote.example.com',
+    domain: 'https://www.boote.ir',
     isActive: true,
     phone: '09123456790',
     serviceArea: {
@@ -50,4 +50,3 @@ export const restaurantsData: RestaurantData[] = [
     },
   },
 ];
-