Every bank has different rules. Some just need to return a card. The ICBC you mentioned is a separate account and needs to be replaced with a corresponding card. The repayment method is as follows:

The repayment date is 25 days after the bill date of ICBC's credit card, which means that the bill of last month should be paid off on the 25th of this month.

There are several ways: 1, automatic repayment, automatic repayment set by binding credit card and bank card; 2. Tenpay repayment: log in to Tenpay website and select "Credit Card Repayment", and use a debit card with online payment function to repay the credit card according to the instructions. The funds will be received in real time, and the handling fee will be temporarily waived. 3. Log in to Alipay website and select "Credit Card Repayment". According to the operating instructions, use the debit card with online payment function to repay the credit card of ICBC, and the funds will arrive in real time without handling fee. 4. Inter-bank ATM transfer repayment. As long as you hold the debit card of the bank that accesses the network, you can transfer the repayment to the ICBC credit card at the ATM of the bank that accesses the network. 5. Cash repayment is available at the counter. You can repay the ICBC credit card in cash at the counter of any online banking outlet. Accept others' repayment and repayment without card, and receive the account in real time without handling fee.