There are two options to change a billing address.
:A. To change the billing address on a single credit card
Log in and go to the “Billing Information” tab in the main menu
Select the card to change the billing address
When changes are complete click “Add A Payment Card” to finalize.
:B. To change the billing address on your profile
Log in and go to the “Contact Information” tab in the main menu
Navigate to the “Mailing Address” section
When changes are complete click “Update Information” to finalize