Not very happy, along with a lot of customers, I went through Kayak to crystal to book my flight to Thailand, on their web site I entered all the details, when I went to pay it showed 14 mins to complete the transaction but it didn’t let me pay, tried 3 times no luck. Had to call their call back number, when they called me back they said the problem was that it was a very popular flight & all tickets at that price had been sold but the had a few seats a an extra £250 as I only had a few days to get the booking I felt I had to pay the new price, but I believe the price shown on Kayak doesn’t exist and the pay portal on their web site is a front to get your details & then hit you with a higher price when you call them