gdsinopec fix

helper/refill/api/xyz/gdsinopec/RefillPhone.php

@@ -74,6 +74,7 @@ class RefillPhone extends refill\IRefillThird
             return [false, $products];
         } else {
             $match_products = [];
+            $amount = intval($amount);
             foreach ($products as $product)
             {
                 $value = intval($product['value']);