What is the "internal and external card throwing" of credit cards?

Inside card throwing out is also called "inside card misthrowing". The so-called credit cards (i.e. internal cards) issued by domestic banks should have been paid and settled through the UnionPay system, but they were incorrectly processed through the systems of international card issuing organizations such as VISA and MasterCard.

The main reason for "internal card leakage" is improper operation of the acquiring bank. When customers swipe their cards, they use the internal card as a foreign card for acquiring and payment settlement, so that the RMB consumption items are transferred to a foreign international clearing system for RMB to foreign currency settlement, and then transferred back to the card issuing bank for foreign currency settlement. In this way, a normal RMB transaction requires two additional foreign exchange settlements, and the exchange fee will naturally double.

However, friends do not need to worry too much, because the situation of internal cards being thrown out is not common in China. It is assumed that the cardholder holds a dual-currency card in RMB and USD, which rarely occurs in Eurozone countries or other non-USD currency countries. Moreover, almost all domestic dual-currency card issuers have borne the exchange loss in this case. Once the cardholder discovers "internal card leakage", he can call the credit card service hotline of the card issuer at any time to inquire.