To prepay the credit card by installment, you need to call the corresponding issuing bank directly to apply for prepayment, and then the bank can pay off the credit card debt before the repayment date after reviewing and issuing the bill.

Credit cards can be repaid in advance by installments, or I can take my ID card and card to the counter of the bank where the credit card belongs.

Generally, prepayment by credit card installment cannot reduce the remaining installment fee, except that some banks will need to pay liquidated damages.