Need to update the phone number on your Battle.net Account?

Information on why you might receive this error when sending a message to a Battle.net friend.

What to do when you receive an error when adding a phone number to your Battle.net account

How to report a bug in StarCraft II

Information about why you might get the message "An error has occurred." when you try to add a payment method

Troubleshooting steps for communication and transmission errors.

Troubleshooting Battle.net Balance payment issues

How to resolve this error when trying to log in to Battle.net

Information about this error when adding a phone number or a Battle.net Authenticator to a Battle.net account.

Information on error BLZBNTBGS00004668.