I guess things may be a bit different in terms of service plans between Sweden and UK but the point is that the car was set on variable servicing which I never accepted (or even ever wanted for any of my cars), without the dealership letting me know either (yes, probably should have asked at the time of purchase but never had variable before so I thought fixed was the default anyway). The other more confusing thing is that initially they stated no oil change is scheduled before 30,000km so if the car asks for one it wouldn't be covered. That really got me upset as that would mean the only thing I would get covered in 3 years would be just one service, while forking out for 2 extra oil changes (assuming once per year). Now they say the guy I talked to didn't know cars very well (hmm, i thought that was a prerequisite for working at customer support arranging services) and that the oil change will be covered indeed so I guess I'll just forget about it.
Still, their description of what a 3 year service plan includes (BTW only one option here, no service + maintenance as TwoSheds suggested) is confusing:
30,000km: 1x service including oil, filters, brake fluid etc.
plus one inspection (visual)
So you would have to wait until 30,000 for the first oil change but if the car asks for an oil change before (and it will) it is not covered. But for some reason mine at 11,600km will be covered... wtf