Blizzard Customer Support cannot lock your account on request
Information on using Diablo III Account Rollbacks after your account is hacked.
How to report a player for cheating in Diablo III
Information about removing an authenticator you did not attach
If you're seeing this message, check your email for details about the violation and a link to information on the appeals process.
Information on the Diablo III Account Ban or Suspension, and how to appeal the decision.
What to do when getting an error that the Battle.net Account has logged in somewhere else.
How to identify and report suspicious communications received by mail, text, or in-game chat.