AMEX Users get $50 off Virginblue bookings

If you are an AMEX user, you can register your card for $50 cashback from Virginblue if you book a flight between now and 31 March 2011, but you will need to add your details to the website www.amexnetwork.com.au before you book your flight. Get in quick because it is only open for the first 500 customers.