To update your payment information please see the steps below:
- Go to your Google Play account.
- On the left-hand side select "Payment methods"
- Click on Add a payment method or Edit payment method.
- If prompted, sign in to payments.google.com and follow the on-screen instructions.
- If using a mobile device you will need to select the icon with your picture, on the top right-hand side and then select Payment and subscriptions.
6. Then select Payment method and from there you will be able to add or edit your credit or debit card information.
For more useful information about getting the most from your Social Games experience, please visit http://smartsocialgamers.org/managing-social-games/