Take China Merchants Bank Credit Card as an example. According to the China Convention on Self-discipline of Bank Card Industry, China Merchants Bank Credit Card has a three-day grace period by default, if your payment is within three days after the final repayment date.

If it arrives, it will not be overdue, and there will be no late payment fee and interest. I suggest you pay back on time in the future to avoid overdue. For example, the final repayment date is the 5th of each month, and the repayment will be made before 24: 00 pm on the 8th of that month, which will not affect the private letter.

Yes, you don't need to apply for this service.

If the repayment date is exceeded and even the minimum repayment amount is not enough, personal credit information will be recorded.