What to do if you receive an error that your code is already claimed in your account.

Troubleshooting for game crashes with error "The application encountered an unexpected error"

What to do if you can't save your communication preferences in the Account Management page.

Troubleshooting steps for crash problems

Follow these steps to return your game client’s language settings to default.

How to obtain error logs for Blizzard games

Information regarding steps you can take if your email address is already in use on an account.

Information about this error when redeeming a code on your Battle.net account

How to troubleshoot connection issues between Battle.net and Steam

How to resolve the error message "We can’t process this code at this time"