How to report harassment taking place within Battle.net chat (mobile or desktop)

How to report a player for cheating in Diablo III

Reporting your own behavior won't prevent action.

How to report players in Diablo III.

Information regarding harassment for streamers.

How to report a player who is threatening with harming another person or a place

Information on how to report forum posts

How to report abusive content in a Blizzard game, platform, or forum.

How to report another player that is using an offensive or inappropriate BattleTag

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