Its in both!
Up to the service indicator (501 gallons between services) or 2yrs, whichever is sooner.
The services go in the following order:-
Running in service (1200miles, important that its very close to this when done)
Oil service
Inspection 1
Oil service
Inspection 2
Oil service
Inspection 1
etc
You can guesstimate that you get 10-12k between services in general.
If the car hasnt had the oil service then it will be due one soon, guess that would be when it had the 1200 mile service and not when the car is actually 2yrs old though.....what is the service indicator showing to the next service (plus is it saying oil service?) and whats the cars current mileage?