Does the questioner want to ask "What should I do if someone claiming to have a China Construction Bank credit card calls and says it is overdue?"

1. First of all, if someone claiming to have a CCB credit card calls and says it is overdue, you can download the CCB Credit Card app and log in to your credit card account to check whether it is overdue.

2. Secondly, the bank will notify you via SMS in advance if your credit card is overdue. You can check to see if you have received an SMS notification of an overdue credit card from China Construction Bank.

3. Finally, bring your ID card and credit card to the nearest CCB branch for enquiry.