My Clubby had it's first oil service yesterday (17 months old and 17,000 miles). I have a c.£400 plan to cover the first two services. I pointed out to the dealer that the oil service was due at 16,800 miles and the "inspection" was scheduled as due 80 days later. The service manager said the inspection was just a matter of checking a few extra items so he'd do that at the same time to save booking in again. It was all be treated as being within the first oil service, so he didn't charge anything for it.
Interestingly, when I booked my service the dealership sent me a pre-booking form (!) showing a charge to me of £230 (despite me telling them I had a service plan) but after the service they gave me the job sheet showing that they only charged £130 to VW. The inspection just seems like an opportunity for them to look at your car and try to sell you stuff you don't need.