First of all, it may be caused by your repayment after the repayment deadline. Credit cards usually stipulate a repayment deadline. If you repay after this date, it may be regarded as overdue repayment, resulting in overdue interest and late payment fees, which makes you still appear to have arrears.
secondly, it may be because you have made other consumption or taken the current behavior before repayment. Even if you pay off the consumption amount on the credit card bill at one time, if you make new consumption or cash withdrawal before the repayment time, this amount will be occupied, making you still appear to have arrears.
in addition, repayment may be delayed. Sometimes, although you have repaid on time, due to the processing time of the bank, the repayment may take some delay to be truly reflected in your credit card account. During this delay, your credit card bill may still show a debt.
to sum up, although you have definitely paid off your credit card, due to overdue repayment, new consumption or cash withdrawal, and delay in repayment, your credit card bill may still show arrears.
supplementary information:
in order to avoid the above situation, it is recommended that you pay off the current bill in time before the repayment deadline, and do not make any new consumption or cash withdrawal after repayment. In addition, you can check the bank flow or consult the credit card issuing bank to understand the specific repayment situation and ensure the accuracy of the bill.
Please note that the credit card bill may be different due to personal card habits and bank policies, so it is recommended that you consult and handle it according to your actual situation.
I hope the above answers are helpful to you. If you have any other questions, please feel free to ask.