What to do if your character is locked after a transfer to a lower box level license.
Possible causes for the error "Authentication Failed. Try Again." and how to address them
Information about this Overwatch console login error.
What do if your character falls through the world in World of Warcraft
What to do if you receive the error "We Can't Find That Battle.net Account" when logging into Battle.net with your Battle.net account email.
Free accounts cannot level past level 5.
What to do if you think you are missing progress in Hearthstone after logging in
Information about how to unlink your Activision account from your Battle.net account