There are three situations:

1. The bank account information is incorrect. The cardholder re-verifies whether the entered bank account information is consistent with the account-opening bank information, and attempts repayment again.

2. The account status is abnormal. Contact the bank service hotline to verify the status of the bank's credit card account and negotiate repayment.

3. The banking system is suspended. If the credit card issuing bank's system is busy or in the process of being upgraded, you can choose the over-the-counter repayment method.