According to the calculation rule that the due repayment date of CCB is 20 days after the billing date, the billing date of the landlord should be 15 per month. It is suggested that the landlord can check the billing point through his own credit card website-the "Credit Card Service Hall" on the left hand side, enter the information and check it. You can also edit the short message "3 1 1# in the last four digits of the card number" to 95533 with the mobile phone number you reserved at his home, which will reply to the billing date of the latest bill of the landlord. If the reply is 4/ 15, it also means that the billing date is 15.

At the same time, according to this rule, the interest-free period of CCB credit card is 20-50 days. How to understand it?

Assume that the billing date of each month is 15, and transactions such as credit card consumption and cash withdrawal from 16 to next month 15 are settled on next month 15, forming a billing cycle, and the due repayment date is 20 days after the billing date, that is, the 4th or 5th of the second month (because there are different months).

For example, if you swipe your card between April 16-5/ 15, your bill will be settled on May 15, and June/4 is the due date.

/1 So, swipe your card in April 16, with an interest-free period of 50 days (50 days in April 16-4), swipe your card in April 17, with an interest-free period of 49 days, and so on, swipe your card in May 15, and settle the account on the same day.

To sum up, the closer the bill is to the future accounting date, the longer the interest-free period you can enjoy.