2. A credit card is an invalid card: generally speaking, it means that the status of a credit card is abnormal, such as it has expired, or it has been permanently banned due to loss reporting or freezing. , which means it becomes an invalid card. Such a credit card has no financial function, and the repayment of such a card will show invalid merchants, leading to the failure of repayment. If this happens, you'd better call the customer service phone of the issuing bank to check the status of the card.

3. The issuing bank does not support repayment: Although China UnionPay Express can repay credit cards, not all banks can support it, but generally prime bank can support it, such as Agricultural Bank, Bank of China, Postal Savings Bank and China Everbright Bank. But if it is those small local banks, it will not be supported.