There is a limit on the number of repayments for each bank when using WeChat to repay the credit card. In the future, for credit card repayment, you should pay off the current arrears in one lump sum according to the total amount payable on the bill from the billing date to the repayment date, and don't brush one sum, which will not only occupy WeChat as the number of credit card repayments, but also easily lead to leakage.

when the number of times wechat repays the credit card has reached the upper limit, you can repay the China merchants credit card by other means, such as using AliPay, Tenpay, Lacarra, or going to the counters and ATMs of China merchants bank, all of which are free.