For 9.10 credit card purchases and 9.6 credit card purchases, the final repayment date is 11.2\x0d\ \x0d\The final repayment date for Bank of Communications credit cards is the 25th day after the bill date. The bill date is the 8th (fixed), that is, \x0d\ bill 9.8 is generated, recording transactions between 8.9 and 9.8. The final repayment date is the 25th day after 9.8, that is, 10.3\x0d\ bill 10.8 is generated, recording 9.9 For transactions during -10.8, the final repayment date is the 25th day after 10.8, that is, 11.2\x0d\and so on. \x0d\\x0d\ Obviously, the interest-free period for 9.8 purchases on the bill day is the shortest, with 25 days (9.8 purchases, 10.3 repayments), and the 9.9 consumption on the first day after the bill date is the longest, with 56 days (9.9 purchases, 11.2 repayments) . It should be noted that there is an interest-free period only for card purchases, but there is no interest-free period for cash withdrawals.