The first step is to open JD. Click on my wallet option. (as shown in the figure below)
Step 2: Click "Gift Card" on the page after entering. (as shown in the figure below)
Step 3, find the "bind new card option" in the lower right corner. (as shown in the figure below)
Step 4, bind and use after entering the card secret on the page. (as shown in the figure below)
These are all the steps to solve the problem. Remember to like it for me if it is useful to you ~