How to update your BattleTag.
This article explains the process of speaking to a Game Master (GM).
How to ignore another player in Diablo II
Information about the error "Please select a different realm" when transferring a WoW Classic character.
How to report a player for cheating in Diablo II
During technical troubleshooting, you may need to fully uninstall and reinstall a game.
Troubleshooting steps for error "Game Initialization Failed" when launching a game
Friend or family member used payment information without permission and I would like a refund for the purchase(s) made
World of Warcraft does not support 32-bit operating systems.
Error message information for classic Blizzard games.