hello, if the CMB credit card is overdue, the customer can apply for a settlement certificate after all the accounts have been settled. If you need to handle it, please call the customer service hotline to apply manually. This service only provides consultation during working days and working hours (that is, 9: -12: and 13: 3-17: 3 from Monday to Friday). If you need it urgently, you can apply for a fax. Under normal circumstances, the bank sends it by registered mail.