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

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

How to report a bug in Diablo III

What to do if you are receiving emails for another player with a Gmail similar to yours.

If you encounter a bug in one of our games, please report it to us.

How to resolve this error in the Blizzard Shop

Information regarding harassment for streamers

Troubleshooting steps for "Waiting on Another Installation or Update" error when trying to update a game.

Troubleshooting for error 315000