We often use zip transfers, and normally fine. This time in December, we waited 1hr 45mins to transfer from the airport. Partly they said because our flight arrived in 10 mins early, and therefore we would have to wait, which was understandable, but then our wait went way over a further hour. I got off the coach to ask what the problem was and was advised they were still waiting for 4 passengers from 2 other flights due within ten mins, but no-one else got on the coach. They suggested passengers had not cancelled their booking, which delayed our coach leaving. Why make us wait, when we already had to wait.why were these so called passengers not made to wait like we were, especially if they weren't showing up when they said they would.. Bit disappointed as we always would give them 5 stars. Return journey was fine. Pick up as described and time said.