How to attach an Authenticator to your Battle.net account

Information on where to update your Activsion Account Email

It is not possible to move a Call of Duty account to another Battle.net account

Troubleshooting steps for issues while linking a PlayStation Network, Xbox Live or Nintendo Switch account to a Battle.net account

An authenticator is on the Battle.net account that you did not add.

It is not possible to merge the progress of two or more games into one.

Instructions on linking your MLG and Blizzard accounts

Information regarding the legality of sharing an account.

Steps for linking a Third Party Platform's account to your Battle.net Account.

Recovering a Battle.net Account when the email address has been forgotten