#3 - Aug. 20, 2010, 9:26 p.m.
Q u o t e:
http://us.blizzard.com/support/article.xml?locale=en_US&articleId=26109
What happens if I lose my mobile phone after activating the Battle.net Mobile Authenticator?
Please contact Blizzard Customer Support if your phone is ever lost or stolen so that we can take appropriate action.
^^ This.
In order to remove the authenticator over the phone, you will need to be able to verify the Battle.net Secret Question Answer and either the serial number associated with the mobile authenticator, or the
Classic World of Warcraft authentication key. You may wish to jot down the mobile authenticator serial number and keep it somewhere safe if you no longer have the World of Warcraft authentication key.