#3 - Aug. 26, 2010, 3:11 p.m.
Don’t be sorry, Squallo, as you have come to the right Forum for the answer. :)
To ship an authenticator to Australia will cost approximately $20.00 USD for the shipping costs alone, and the item will ship either UPS or Fed-Ex. Keep in mind this does not take into account any additional charges that may occur with Customs. Unfortunately, I would be unable to provide you an amount that Customs would charge for this item.
If you have an iPhone, iPod Touch, iPad, or Android phone, you can download the application for free. Other cell phones and cell phone providers are also compatible with the Battle.net Mobile Authenticator application. The service providers in Australia that offer the application are Optus, Telstra, and Vodafone, and a complete list of compatible phones can be found here:
Mobile Authenticator Cell Phone Compatibility
http://mobile.blizzard.com/us-en/support-compat.html/