Some of their car rentals have a no refund or no cancellation even if you cancel long before the planned rental. They do not make it perfectly clear. You have to read the contract concerning cancellations and refunds. I know I made a mistake not reading that before I made the purchase and when I made the purchase, it was not mentioned. Now they took my money and refused to refund it even though they can re rent the same car I rented. I will never use Priceline again. I feel that I have been ripped off.