You can use this service to reset your Battle.net password, which will remove most account locks.

Use this page if you wish to change/modify your Contact & Shipping address for your Battle.net Account.

Information about how to unlink your Activision account from your Battle.net account

If someone changed the email address on your account, or if you can't remember what it was, we can send you a text to recover your account.

How to unlink a Steam, Playstation Network, Xbox Live, or Nintendo Switch account from a Battle.net account

What to do if you receive an error when linking your Xbox Account to your Battle.net Account.

What to do if you receive an error message when attempting to connect your Xbox account to your Battle.net account.

Information about linking your Google account to your Battle.net

What to do if you can't link your Battle.net account to GameBattles.

What to do if you earned Twitch drops in the wrong Battle.net account