If it is automatic repayment, it should be found on the second day of repayment date ~ ~ I suggest you call CCB credit card customer service to check!
About fees: "full" repayment on the last repayment date will not generate any fees, that is, the bank will not charge interest.
If the final repayment date is based on the "minimum repayment amount", the accountant will charge interest, usually (individual banks will charge interest according to the unpaid part) according to the full amount of the bill of the month!
If it is lower than the "minimum repayment amount", it will affect the credit history!
Whether it will generate interest or not is related to when you will pay it back and whether it will be paid back in full ... As for the scheduled repayment time, please call ... Customer service will often use it, so it's no harm to ask more! The customer service phone number should be on the back of the card!