Credit cards are generally repaid 20 days after the bill date, but the repayment date of each bank is different, subject to the actual regulations of the relevant bank.

The credit card repayment date of ABC is 25 days after the bill date, that of China Merchants Bank is 18 days after the bill date, and that of China CITIC Bank is 19 days after the bill date. The specific date depends on the bank regulations.

Bookkeeping date refers to the date when the card issuer collects the accumulated outstanding principal of consumer transactions, principal of cash withdrawal transactions, fees, etc. Calculate the interest and the amount payable by the cardholder.