So they've been scrapped as a few people abused them?
I only entered as they used to be on posters on the hotel lists. And I don't see how it could be abused for the one that were simple strange targets, like so many weekend stays, etc.
I'm sure it used to have a list of active promotions, it shouldn't have been too hard to limit it to one per member.
That's a shame as it was another bit of fun to see what ones you managed to tick off on the list.