Changing language settings for game and/or communications from Blizzard
How to consolidate multiple Blizzard accounts into a single account.
Blizzard or game account hacked or compromised.
Steps on how to create a new Administrator Profile.
How to move a game account to a different Blizzard account
How to move a Hearthstone account off a Blizzard account
It is not possible to merge the progress of two or more games into one.
If you forgot your Blizzard account email, you can use your phone number to find your account.
You can change your BattleTag in Account Management.
This page details the video cards that are supported for use with Hearthstone.