It is not possible to remove the Battle.net Authenticator from an account with Battle.net Balance

What to do if the website returns "Connection Error" when adding a phone number

There was a server-side issue downloading a required file.

Before you can connect to the game servers, you must add a phone number to this account.

Information about contacting or submitting feedback about Blizzard Community teams.

What to do if you are unable to add your phone number because the wrong country code is showing.

You have attempted to connect to an invalid server. If this problem persists, please contact Customer Support.

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

What to do if you cannot log into an existing account or link your existing mobile account to Battle.net.

What to do if you are unable to launch WoW and the error message mentions 3D accelerator card.