Updating/Changing Your Payment Information
In order to change/view your current payment information:
Under the Account page, scroll down to the Subscription Information section and click on the Manage plan and payment info link:
On the next page, click the View Billing Information link:
You'll be taken to a page where you can view/update your card information:
From here you can add/edit payment information, as well as download previous invoices, and view your charge history.