Perhaps everyone else knows this, or perhaps it's an uncommon glitch, I've very much not a Marriott Rewards guy. So apologies if I'm mentioning a big secret or something, I'm just not familiar with the program from too much personal experience. I do occasionally stay at the Renaissance Boca Raton since it's about half a mile from my grandparents' home. But I haven't even always stayed on regular rates there, it's frequently been the only 4* on Priceline in the area and it's not like I usually have Marriott status except when it's comped, Marriott honors Priceline benefits anyway. So I've frequently Pricelined the hotel. Well, I had a cheap rate there earlier this month so I paid it and I also signed up for the stay 2 get a free night promo even though I didn't expect to have 2 stays during the promo period. While I was at the hotel my wife told me I needed to book a stay for my in-laws, a single night at a particular SpringHill Suites. I was logged into my Marriott Rewards account when I did it. I booked the stay in their name. And points posted to my account. And a free night from the current promo did as well, since that was the second stay. Strange behavior, didn't expect it at all, their reservation wasn't in my name and I didn't even realize my MR number attached to it.