Unsupported operating system error.
How to resolve mistakes claiming a CoD key on the wrong Blizzard account
What to do if your Authenticator gets stuck at any point during set up.
If you miss a sale Customer Support is not able to offer you a previous sale's prices or promotions.
Steps to help you find a missing ticket.
It can take a moment for an account to recognize a recent purchase.
Information about troubleshooting problems with the Blizzard Battle.net friends list
What to do if you are missing Blizzard balance
How to resolve the issue when the mouse cursor is missing
Troubleshooting steps for news and ads not appearing in the Blizzard Battle.net App.