All payment information can be adjusted on your profile. When you open the app click on the icon in the bottom right corner (looks like a person), which is your profile page. From there, click the icon in the top left hand corner (for settings) and then select Payment information. All the cards you have added should be listed there. If you have more than one you can set one as the default payment.
- On this page you can click the plus sign in the top right hand corner to add a payment.
- To remove a card, just click on the card on this page and then select to remove card.
- You are not able to edit an existing card, if the expiration date changed for example. You would have to remove the card and re add the card information entirely.