debug

mobile/control/merchant_refill.php

@@ -93,7 +93,7 @@ class merchant_refillControl extends mbMerchantControl
             else
             {
                 $params = [ 'mchid' => $this->mchid(),
-                    'buyer_id' => $merchant_info['admin_id'],
+                    'buyer_id' => intval($merchant_info['admin_id']),
                     'amount' => $amount,
                     'card_no' => $card_no,
                     'mch_order' => "",