Wantmygti; The default service regime setting from the factory is for flexible (long life) servicing - I think the code for this on your vehicle data sticker is Q16.
If you’ve got the service plan (assume this is the official VW service plan and not the dealer’s own?), the services are time and distance based and the dealer should have reset the service regime on your car to time and distance. The first and second services under the service plan are due at the soonest of 10,000 / 12 months and 20,000 / 24 months.
I’d check with your dealer to see what service regime they have against your car’s details as they may have overlooked updating this, especially if your car’s service reminder wasn’t updated (mine wasn’t, and I have the service plan). In any event, under VW’s service plan, the first service shouldn’t be due until the earliest of 10,000 or 12 months and the dealer should confirm this is the case.