My father was scammed into buying a Hilton Grand Vacation timeshare at 57th st. in NYC. He and my mother were in their 80's. My father is now 95 and has maybe used the room as little as 5 nights since he bought in. The annual charges are outrageous. We wanted to book a night next week and were told it would cost an additional $89 to clean the room at checkout! We are fuming and want out without losing everything that has been 'invested'. Can you help