Being one week overdue may have some impact on your credit card. Overdue items have a negative impact on credit records, but the specific impact depends on the following factors:

1. Overdue duration: One week overdue is relatively short and may have a small impact on credit records. Typically, the longer the overdue period, the more serious the impact on your credit history.

2. Overdue frequency: If this is the first time it is overdue, the impact may be relatively small. However, if you frequently make late payments, it will increase the negative impact on your credit history.

3. Overdue amount: If the overdue amount is large, it may have a more serious impact on your credit record. This has to do with the size of your credit card balance.

In general, being overdue for one week may have a certain impact on your credit card, but the specific impact will be affected by factors such as overdue duration, overdue frequency, and overdue amount. It is recommended to make timely repayments to avoid overdue payments and to maintain a good credit history.

Supplementary information: Credit history is an evaluation system based on an individual's repayment performance at financial institutions and other credit institutions. Late repayments may result in a decline in your credit score, which may affect credit limit increases, loan application approval, and interest rate concessions.

Serious overdue payments may result in further action by the bank, such as charging late fees, closing the credit card account, or referring it to a collection agency. These actions can also have a longer-term and serious impact on your credit history.

Therefore, maintaining good repayment habits is crucial. In any case, you should try to avoid late payments and pay off your credit card balances in full and on time to maintain a good credit record and personal credit rating.