If you want to pay by installment, you can choose to pay by installment when you pay, or you can choose to pay by installment when you repay after paying in full. When the user chooses to pay by installment, the number of installments will be set on the payment page, and the user only needs to swipe his card. Since it has been paid in full, the user can choose to pay the bill in installments, so that he can repay it in installments.