How to swap email addresses between two accounts
What to do if you receive this error when adding your phone number to your Battle.net account
What to do if your Activision account has been compromised.
This game account is in a different region or Battle.net account.
Information about retrieving a locked account.
What to do if you need to unlink your Activision account from your Battle.net account
How to unlink your Twitch account from your Battle.net account