Just got a call from this number, came here and blocked it. I noticed that I've also blocked 1221 and 1226 in the past. Reading those entries here again, they sound very similar, calls from a "redemption center", just different names used. My guess is there's a whole block of numbers used by the same company.
According to a post on similar site, it is a "Free Stay at the Marriott" SCAM. Here's a post about the scam
http://www.rewards-insiders.marriott.com/thread/17886