You can delete a payment method from your account in the app or online. 

To delete a payment method in the app:

1. Sign in to your account in the app
2. Click on your profile in the top in the top left-hand corner of the screen
3. Choose Payment methods
4. Click on the payment method you want to remove
5. Click Edit in the top right-hand corner
6. Scroll to the bottom of the screen and click Delete

To delete a payment method in your account online:

1. Log in to your account
2. Click Payment Methods
3. Click the three vertical dots on the payment method you want to remove
4. Click Delete