If you need to update your card information such as the card number, expiration date, or CVV, you can easily do so by removing the existing payment source and adding the new details.
To remove a payment source, follow these steps:
1. Tap on the Profile icon 
located at the bottom right corner of the home screen.
2. Select "Wallet" from the options.
3. Click on "Edit" next to "Select Payment Source".
4. Locate the card you want to remove and tap on the red circle with a white minus symbol at the top right corner.
5. Once you have completed this, click on "Done" next to "Select Funding Source" and then tap on "Save" at the top of the screen.
To add a new payment source, follow these steps:
1. Tap on the Profile icon located at the bottom right corner of the home screen.
2. Select "Wallet" from the options.
3. Choose "Add Payment Source".
4. Enter the details of your new payment source and save the changes.
By following these simple steps, you can easily edit or add a new payment source to ensure your payment information is up to date.