POS machines can be used for credit card repayment in addition to credit card transactions. The specific operation method is as follows:

1, after signing in with operator 0 1 and password 0000;

2. Press the green confirmation button to enter the management menu;

3. Select credit card repayment (in "Management" and "Other" when this step cannot be found);

4. Select the credit card to be repaid by swiping the card. After entering the amount, swipe the debit card.

Need to pay attention to the official notice of POS acquiring institution and check the repayment time of credit card. Some banks do not support timely repayment, which generally takes 2 working days. Please arrange the repayment time reasonably.