Credit card (debit card) can't be unbound from ETC when it is overdue. Only when the overdue debt is paid off and the credit card (credit card) is in a normal state can it be successfully unbound from ETC. If the user's ETC needs to be changed, it is necessary to ensure that the credit card (debit card) is in a normal state and has not expired. After the credit card (debit card) is overdue, it will not only be unable to untie ETC, but also affect the user's personal credit information.

For users, credit cards (debit cards) must be repaid as soon as possible after they are overdue, which can reduce the adverse effects of overdue records and make ETC work normally.