What to do if you have lost access to your Blizzard Data File.
Information regarding linking a Third Party Platform account to Battle.net and the cooldowns these accounts have
What to do if you have lost the password for the Blizzard Data file.
A BattleTag™ is a player-chosen nickname that identifies your Battle.net account
The code of conduct for Blizzard Entertainment forums
Troubleshooting steps to resolve the error "Heads up! Something Went Wrong. Select another payment method or try again later."
Tools required for opening a Blizzard Data file.
How to resolve this issue when installing or updating a game