At 1 october i was in a trip in athens. I make a reservation by booking.com and when i arive, the hotel mistake my reservation, book that room to another person and i didn't have where to stay... i call at booking and say to book another hotel(the new hotel was more expensive and much better) and because it was the hotel mistake, they refound me all the money that i pay for new hotel... the booking.com was very profesional and the staf was grate... for all my futur trip i will use only booking.com