The first step is to open "WeChat". (as shown in the figure below)

Step 2: After the mobile phone opens WeChat to enter, find the "+"sign in the red box in the upper right corner of the figure below, and click Enter. (as shown in the figure below)

Step 3: After entering, find the item of "collecting and paying on behalf of others" and click Enter. (as shown in the figure below)

Step 4: After receiving and paying, click the current preferred payment method to enter. (as shown in the figure below)

Step 5: After entering, you can change the payment method, click Set as the second bank card, and pay with this card. (as shown in the figure below)

The above is all the steps to solve how to use the second bank card to pay for the two bank cards bound by WeChat. If it's useful to you, remember to like it for me ~