you must be a registered guest of any MGM hotel but you only have so many hours to use it once you get it loaded on you players card. Sat to Tues aint gonna work :-)
They ask you for your room number when you redeem it at the mlife desk at your hotel. And, they ask you when you plan to use the reward. Some are 24 hours, some are 48 or 72 hours. You wont find out until you redeem the reward.
