You can add or remove a payment method from your account within the 'Payment methods' section of the app.
To add a new payment method:
Tap the Menu icon
Select Payment methods
To add payment information to your personal USER account, tap Personal Payment Method. For your TEAM account, tap Team Payment Method.
Follow the on screen prompts and click Done
Note: If you're a Team admin, please ensure you're adding a payment method under your Team account (under the section header '[User]'s Team') to successfully pay for a Team Plan.
To remove a payment method:
From the Payment methods screen, choose the payment method you'd like to remove
Tap the method and swipe to the left to reveal a 'Delete' button