What to do if you corrected your country of residence in your account details but still you can't add your phone number to your account

What to do if the website returns "Connection Error" when adding a phone number

Information about this error when adding a phone number or an Authenticator to a Battle.net account

How to remove or change the phone number on your Battle.net account

What to do if you get a "Something went wrong" error when logging in to the Battle.net Mobile App

Information on Battle.net Phone Notifications

The Battle.net desktop app is trying to connect to an invalid or nonexistent server.

The Battle.net desktop app is trying to connect to an invalid or nonexistent server.

Before you can connect to the game servers, you must add a phone number to this account.

You have attempted to connect to an invalid server. If this problem persists, please contact Customer Support.