The bill on the 27th indicates that the bank will settle your account on the 27th of each month, and the consumption from the 28th of last month to the 27th of this month will be billed on the 27th of this month, and then the repayment will be made before 16 of next month. To put it simply, you should remember that the number 16 in September is also a credit card transaction between July 28 and August 27; Transactions between August 28 and September 27 are acceptable.