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.Update phone number Hot Topic
Need to update the phone number on your Battle.net account?Reset password セルフサービス
You can use this service to reset your Battle.net password, which will remove most account locks.
Troubleshooting for error BLZBNTBNA00000015BLZBNTBNA00000012
Troubleshooting for error BLZBNTBNA00000012Input Mapping Game Controls to Unsupported Controllers
Information regarding Blizzard's stance on input mapping, as it relates to game controls