How to correct or update the first name on a Battle.net account
What to do if you are receiving emails for another player with a Gmail similar to yours.
How to change the language settings in your Blizzard games
Information about switching your first and last names on your account
How to change the country/region of residence on your Battle.net account
Regaining access to a Battle.net Account when the email is not accessible.
How to resolve this error when trying to log in to Battle.net
What to do if you are unable to add your phone number because the wrong country code is showing.
Troubleshooting for issues loading the BattleTag or Real ID friend list