Our hotel is asking us to put down a 10 percent deposit for the room blocks. If less than 80 percent of the rooms are not booked we are financially responsible for them. The minimum amount of rooms I can hold is 10. According to my calculations I will only need 7 or 8. I don't want to go forward with the block because of this but feel I would be cheating my guests out of a discounted rate. WWYD?