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

Change your Battle.net Account email address.

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.

Need to update the phone number on your Battle.net Account?

How to update your password if you are getting this error message

What to do if you receive password reset mail without requesting it

Battle.net or game account hacked or compromised

This is how to check if there is an error that the password is not correct

Information about password restrictions and requirements for Battle.net accounts

Cannot remember Blizzard password and want to reset it.