The credit card can be repaid by JD.com, and the repayment methods are as follows:

1. First, open the JD Finance client on the mobile phone.

2. next, enter the jingdong finance page and select "financial management"-"jingdong small treasury".

3. Select "Return Credit Card" in the page indicated by the red arrow.

4. Next, in the credit card repayment page, select an existing credit card for repayment or add a new credit card.

5. then, on the credit card page, select "go to repay" at the arrow.

6. Next, enter the repayment amount and click "Repay Now".

7. then select "payment method" indicated by the red arrow.

8. select "petty cash" in the payment method list, and then enter the password to pay.

9. Next, the repayment can be successful.