LIL-707 Ошибка при оплате подарочных сертификатов

apps/payment/views.py

@@ -211,7 +211,8 @@ class PaymentwallCallbackView(View):
         pingback = Pingback(payment_raw_data, self.get_request_ip())
 
         if pingback.validate():
-            product_type_name, payment_id = pingback.get_product().get_id().split('_')
+            spltted = pingback.get_product().get_id().split('_')
+            product_type_name, payment_id = '_'.join(spltted[:-1]), spltted[-1]
 
             if product_type_name == 'course':
                 product_payment_class = CoursePayment