1. First, pay the minimum repayment amount: According to the regulations of China Bank credit card, the cardholder needs to pay the minimum repayment amount before the repayment date, which is the minimum repayment requirement of credit card. The minimum repayment amount is usually a certain proportion of the total credit card bill, such as 5% or 1%.

2. Second, repay overdue accounts: If the cardholder fails to pay all the accounts or the minimum repayment amount on time, resulting in overdue accounts, Bank of China will require the cardholder to repay the overdue accounts first to avoid further interest and penalty.

3. Then repay the unbilled consumption: The billing cycle of China Bank's credit card is generally one month. If the cardholder has consumption after the billing date, this part of the consumption amount will appear in the next bill. When the cardholder repays the bill amount, the consumption amount that has not been billed is usually calculated later and needs to be paid off in the next billing cycle.

4. finally, repay the billed consumption: finally, the cardholder needs to repay the billed consumption. This includes all consumption items, interest and expenses that have been listed in the credit card bill.

To sum up, the order of credit card repayment in China Bank is to repay the minimum repayment amount first, then overdue accounts, unbilled consumption and finally billed consumption. This order ensures that the cardholder repays the minimum repayment amount on time, and gradually repays all the consumption amount and related expenses, so as to maintain a good credit record and avoid additional interest and fines.

Extended information:

When using China Bank Credit Card, cardholders are advised to repay as much as possible according to their personal financial situation and coping strategies, so as to avoid paying only the minimum amount. Paying only the minimum repayment amount will make the cardholder pay high interest fees continuously and may lead to accumulated debt problems. In addition, the cardholder should pay the money strictly according to the repayment date of the bill to avoid overdue accounts and fines.

In addition, if the information in the question is insufficient, I assume the following information to supplement the answer: Assuming that the cardholder has both unbilled consumption and billed consumption in the same billing cycle, according to the repayment order of China Bank's credit card, the cardholder needs to repay the unbilled consumption first, and then repay the unbilled consumption. This order ensures that the cardholder repays the confirmed bill amount first, so as to avoid the uncertainty and overdue accounts caused by the failure to issue the bill.

Through the above explanation, we can know the repayment sequence of China Bank's credit cards. I hope this information will be helpful to you. For more details, please consult the Bank of China or refer to the relevant credit card terms and regulations.