Made a deposit or money transfer directly to Battle.net account bypassing the website.
Each BattleTag is assigned a numeric ID to create a unique identifier.
This page details the video cards that are supported for use with Hearthstone.
How to delete your Activision account
A phone number can only be linked to one free game
How to swap email addresses between two accounts
This game account is in a different region or Battle.net account.
What to do if you have no sound when playing Hearthstone