How do I book/use a "2011 Spring Mega Bonus Night" if I'm not sure which hotels accept that certificate? Can I view possible hotels and dates by using a particular rate code to choose from possibilities?
I believe that is a Category 1-4 certificate. When you are searching for a hotel on marriott.com, check the box that says "Use Marriott Rewards Points" even though you will not actually be using points. When it returns the list of properties, you can expand the "Hotel Reward Category" filter on the left side of the screen and check the selection boxes next to cagetories 1-4 (or just 4 if you want to maximize your value). As for making the actual reservation, you'll have to call the reservation phone number. You could have them help you locate a property, but I prefer to do that myself first so I can look at the hotels without the pressure to choose one while someone is waiting.
I've used these certificates before when making reservation on line. Once you check the "using MR points" block and then decide on a cat 1-4 hotel, and then click on make reservation, the certificate will automatically be applied instead of deducting any points from your account. At least that's been my experience. Or you can just call the reservations line.