Condition based servicing with 4 Prepay services question

[itscalledbob]

I purchased 4 services consisting of 2 interim and 2 full services when buying new last September.

Billy has now done almost 10k and according to the service information will need an oil change in 3k (which I guess will be in August) and will need its inspection in approximately 18 months. Reading the service schedules an interim looks like an oil change and an inspection.

I'm sure you'll see the obvious problem so was wondering if anyone has any experience of how VW square that circle?