Reporting another player that is using an offensive or inappropriate BattleTag
How to report another player
How to block communication from another player in the Battle.net Desktop App.
How to report harassment taking place within Blizzard chat.
How to report harassment in Battle.net Groups
How to report inappropriate language or names in Diablo Immortal.
Information on how to report forum posts
Reporting an Exploit or Hack
Reporting your own behavior won't prevent action.
What to do if you think another person or group of people has targeted a DDoS attack on you