If the credit card repays in advance by installments and knows that the repayment has been successful, the repayment principal amount will be restored immediately, and if it is partially repaid, the corresponding amount will also be restored.

To apply for termination of installment business or early repayment of overdue installment principal and service fee, you must call the bank before the bill date and apply to the bank for early repayment through the account manager before the bill date. ICBC credit card installment payment service fee is not refundable (prepayment, service fee will not be less, and there will be liquidated damages).