Many thanks Temedar. I've not had much luck with transportation in either Moscow or SPB in recent years. I've been Royally ripped-off every time. This time I will not let it happen!
Last year the IC Moscow booked a cab for the morning for us to get to the airport. Unbeknown to us, the driver had covered the meter with a piece of card quite cleverly - to the point where we never even noticed the meter. We had had a wonderful time in Moscow so didn't really check anything with the driver - we had just asked the hotel the night before and they said around 1400 to 1600 RUB. The driver wanted 6,000 RUB when we arrived at DME.