You said that your billing date is the 27th, so you will settle your account on the 27th of each month, and the final repayment date is 20 days after the billing date.

Consumption from April 28th to May 27th is the bill accumulated on May 27th, and the final repayment date of the bill is June 16.

Consumption from May 28th to June 27th (consumption in June 12 is included in this bill) is the bill accumulated on June 27th, and the final repayment date of the bill is July 17.

After the monthly bill is settled, CCB will send it to you. I suggest you pay attention. You can edit the short message with the mobile phone reserved by the bank and send "4 digits after CCZD# card number" or "4 digits after 3 1 1# card number" to 95533, so that you can check the bill date and repayment date.