Step 1: Tap on your profile picture to access the settings page.
Step 2: Tap on the 'Payment methods' button.
Step 3: Tap on the '+' button.
Step 4: Swipe left on a funding source you would like to remove.
Step 5: Tap on the 'Delete' button.
Step 6: Tap on the 'Remove' button to confirm the removal of the funding source.