After using a credit card to withdraw cash, the bill only repays the principal, and does not include the handling fees and interest incurred. When the bill comes out and the current bill is not paid off, there will be two bills. Also, although the repayment amount is correct, the repayment time happens to be on the bill date. Unexpectedly, some banks do not include the consumption and repayment on the bill date into the current bill, but into the next bill. So The money you paid back only paid off the next period's bill, not the current period's bill, so you can only repay it again.