As for the interest-free repayment period, the interest-free repayment period of 25-55 days is permanent, and you can enjoy revolving credit as long as you use your credit card normally. The interest-free repayment period of the Bank of Communications credit card is from the bank entry date to the due repayment date, with the longest interest-free period of 56 days and the shortest period of 25 days. The interest-free period enjoyed by different credit card consumption days is different, and the interest-free period enjoyed by credit card consumption on the day of bill is the longest. The due repayment date of the Bank of Communications credit card is generally from the 25th day after the bill date (inclusive), and the cardholder can check the bill date and due repayment date in each bill.