Apparently, it is impossible to change your reservation without getting charged, no matter what their policy says. We tried to cancel the second night of our two night stay well within the cancellation window for the hotel. We were told that in order to do that, we would have to cancel the reservation entirely (thus incurring a charge for the first night), and re-book... making one night cost the same as two no matter what. When I mentioned that it was an absurd policy, they offered nothing except to say, repeatedly, that it is "impossible" to change a reservation. At best, they are indifferent to customers, and are a scam at worst. Go to a more reputable site to make your third-party travel reservations... these guys are not worth it.