How to report a player for cheating in Diablo III
Information on bad Diablo III console game disc.
How to block communication from another player in Diablo III.
This article explains the process of speaking to a Game Master (GM).
How to report a bug in Diablo III
Player reports they had heroes they use to play in Diablo III and they're now missing.
How to read and analyze WinMTR data in order to track down a potential connection issue.