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
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
Troubleshooting for issues loading the BattleTag or Real ID friend list
Based on your location, children under a certain age cannot own a Battle.net account.
How to update the secret question in your Battle.net account