You might do better if you check into the "gold card" thread on this board.
http://www.flyertalk.com/forum/marri...thailand.html?
Follow the directions - email the location "Marriott Worldwide", which is routed to the Brisbane Marriott.
They will sell you a package for about $200 which includes the following coupons:
7 - 50% off up to 7 day in Thailand/Asia (off full rack rate)
7 - 70% off for one day each in Australia
Plus - lots of discounts on dinner in the restaurants.
That combined with the 10% discount on gift cards worked out the cheapest for me.
YMMV.
Billy