Information about the "Character not found" error in World of Warcraft
How to report a code of conduct violation in Diablo II (2000)
Blizzard's stance on inappropriate behaviour in Blizzard games.
How to report a player who isn't participating in a battleground.
You can transfer characters between Battle.net accounts as long as the registered name for both accounts match.
What to do if you are missing the Alliance/Horde Flag of Victory toy even if you have completed the quest.
Seeing unread mail icon on mini map but unable to see it in his inbox
How to report cheating in Hearthstone
How to block communication from another player in StarCraft II.