To update your billing address, start by clicking the Billing and Subscriptions link located on the left side navigation of your dashboard.
In the popup window, click on Billing Address.
A screenshot showing the Manage Subscriptions window
In the Billing Address window, click your current information in the white box.
A screenshot showing the Billing Address window
Now, in the Update Your Billing Details window, you can change all your billing information including first name, last name, address, city, state, zip code, and country.
A screenshot showing the Update Your Billing Details window
Once you have completed your changes, click the Update button in the bottom center of the window.