I'll teach you a few ways to see if you have paid back.

1, you log on to the credit card website of CCB, click "Query on bill points", enter the card number and telephone banking password, and look at your issued bills and outstanding bills. Suppose the repayment amount of your bill is 1000, and you see that the outstanding bill is greater than or equal to 1000, which means that you have paid off the current bill.

2. Send "the last four digits of CCZD# card number" to 95533 with your mobile phone registered in the CCB system, and you can also find out the amount you should repay now or whether it is no longer necessary to repay.