It’s always worth considering getting a service plan if buying a new VW. I got one when I bought my car last year. The cost was £200 and covers the first two services (one minor, one major) on the time and distance service regime.
The price of the service plan has increased since I got mine - it’s now £269. but still looks good value compared to VW fixed price servicing prices (minor £184, major £354, total £538) which I know are for cars 3 years old or older, but I doubt those prices would be too much different for newer cars.