Important: If your AWS account and Amazon.com retail account share the same email address and password, then updating the mailing address for one of the accounts changes information for the other account.
To update your mailing address information, do the following:
Log in the AWS Billing and Cost Management console for the AWS account that you want to update.
If you're already logged in to the console and don't see your account information: select your account ID at the upper-right corner of the screen, and then select Account from the dropdown list.
Choose Edit next to Contact Information.
Update your contact information associated with your account, including your mailing address, telephone number, and website address.