How to block communication from another player in the Battle.net Desktop App.

Reporting your own behavior won't prevent action.

What to do if you want to report the infringement of Blizzard's copyright or you are looking to obtain a license to use Blizzard's intellectual property

Information on banned game accounts.

Troubleshooting reports about spam friend requests

How to submit feedback or report an issue with the matchmaking system

Rules for creating BattleTags

How to identify and report suspicious communications received by mail, text, or in-game chat.

What to do if you think another person or group of people has targeted a DDoS attack on you

How to appeal an account action.