VW have two different service routines:
Flexible interval
Set up this way you can theoretically get up to 2 years or 18,000 miles between servicing. I say theoretically as the car monitors driving style (nos of short runs, no of starts etc) and monitors oil quality etc, and will then determine when the service is due, so it might be sooner than you think.
Time and Distance
Set up this way the car is designed to be serviced every 12 months or approx 10,000 miles (whichever comes sooner), and is on a count down basis.
It seems all new cars come from the factory set up as Flexible Interval, but if you are only doing small annual mileages, you can have it changed to Time and Distance which is the recommended interval for mileages of less than around 10-12k per annum.