Follow the simple steps below to disable Quick Payment
Step 1: Click on your profile.
Step 2: Go to Bank Card.
Step 3: Click on the menu bar next to your saved bank card details, and select “Disable Quick Payment”.
Below are the articles that may be useful for you :
Can I delete my saved bank card or the bank card I’ve selected for Quick Payment?
How can I change the bank card used for Quick Payment?