1. Open the Pinduoduo app, click Personal Center, and click Duoduo wallet (as shown in the figure below).
2. Click on the bank card. (as shown in the figure below)
3. Select the bank card to delete (as shown below).
4. After clicking More, click Bank Card Management. (as shown in the figure below)
5. Click to unbind the bank card. (as shown in the figure below)