Guest reservations=hotelvalues=priceline. I had made a reservation for 3 rooms (over $4000) 9 months in advance. I had no idea this was a non-refundable reservation. I called 4 month prior to our arrival to change the date of our travel by one day--I was told not possible. I tried to add a name of another guest to one of rooms--I was told not possible. My family and I travel very frequently and I NEVER purchase non-refundable rooms on purpose. The refund policy must have been well hidden that I did not realize at time of booking. I was surprised by how inflexible the company was and I do not intend to use them ever again.