To log in to the Gear Store you must have a Gear Store account different from your Battle.net account.
Troubleshooting steps to resolve voice chat problems in StarCraft II
Troubleshooting steps to help you connect to StarCraft II
Enabling the Command Key + Click combination on Mac systems.
If you are experiencing errors while patching StarCraft, please try reinstalling the game.
Troubleshooting steps for resolving payment error in StarCraft II.
Troubleshooting steps for resolving payment error in Heroes of the Storm.
How to report a player for cheating in StarCraft II
How to block communication from another player in StarCraft II.
How to update your BattleTag.