I bought $2000 worth of Marriott gift cards with my Marriott Visa Card during the bonus promotion last year and have not seen anything credited to my account. This was supposed to be the "triple play" where bonus points are given for the initial gift card purchase, then for the hotel stay and then the Marriott credit card. I've received nothing.
The bonus points are back credited to your account. If you go to account activity, search from 12/1/09 to current, bonus items only...you should see that they credited your december account even though it is now february. A little confusing, but my bonus points for the same purchase are listed that way.