Updating Your Payment Method
You can change your credit card payment method for your Pebble account at any time.
To do this, take the following steps:
Login to your Pebble Account
Go to Settings on the Pebble Dashboard
Click Billing in the top right
Under Payment Method, select Change
On this screen, select Add New Card or choose an existing card you have added already.
Enter your new credit card details then confirm by clicking the Add Card button
Your new card selected will be the card from which you'll now be billed from.