Recovering a Blizzard Account when the email address has been forgotten
This article explains the process of speaking to a Game Master (GM).
Information on Diablo III Account Rollbacks after your account is hacked.
How to update your BattleTag.
Player reports they had heroes they use to play in Diablo III and they're now missing.
Information on error BLZ51900011
Receiving password reset emails without requesting them.
Troubleshooting for error 315000
It is not possible to merge the progress of two or more games into one.
Information on the console demo for Diablo III.