Cathay Pacific Asia Miles - Hotel booking by using "offer code" from Marco Polo Club

Hi,

Marco Polo members can use special code to book some hotels to have something like discounts, free room upgrade, early check in and late check out etc... But anyone actually sucessfully complete a booking with these partner hotels by quoting the special code from MPC???

So far, I have tried Marriot (code: MPOM) and Starwoods hotels (code: SET277144). BUT, they NEVER work. It is funny enough that when I gave the code to Marriot just now, they can't even know what "MPOM" is...

Can any expert advice???

Thanks

The code can be found here: http://downloads.cathaypacific.com/mpo/mpoguide_en.pdf
Page 13

I've also raised this problem a couple of weeks ago. if you do a search, one of us managed to get the marriot person. but for the rest of the hotels, i dont have a clue. btw, I've contacted Westin TPW, but of course, it failed to work out. They simply said there isnt such offer. Maybe we should send CX an email.

refer to...
http://www.flyertalk.com/forum/showthread.php?t=606300

So, has anyone have any idea if its not Marriott?