John,
As this is such a new car, have you considered doing it yourself and saving quite a few quid.
When I got my car, one of the first things I did was clay bar it and put a good coat of wax on it to protect it. You don't need much detailing skill to do a clay bar treatment and apply wax.
Unless you car has significant swirl marks which it shouldn't with the low miles, I would save a fortune and do it myself and re-do every 6 months.