I made this same point in this thread: http://www.flyertalk.com/forum/hilto...ll-dunned.html

I ended up losing 30k in points because the Q3FN certificate still has not been redeemed one year later and instead a category 4 redemption was done by the Hampton in Miami without my authorization. I have not used the remaining Q3FN certificate because after repeated phone calls I just plumb gave up trying to get it fixed. I'm out the 30K and callin' it a day...