Choice Hotels International

My husband and I booked a reservation at the Comfort Suites on September 14, 2010 for king suite @114.99 per night for arrival on August 26th and departure on August 28th of 2011 and received a confirmaiton. We are going to the NASCAR Bristol race, this is my husbands birthday present, so we booked well in advance (almost a year). On Sunday, May 22nd, the hotel decides to call me and tell me they are cancelling my reservation because they have overbooked the hotel by 50 rooms. At this point in time, being 3 months out from the event, there's not a hotel available within a decent radius. At this point in time, the hotel has stated that they WILL NOT honor the reservation no matter what - i've exhausted all options, even contacting corporate. Corporate says they can't make a hotel honor a reservation. I feel this is poor service and need help in getting it resolved.