I have recently bought a 2008 cab 2.0 SE S line. Love the car. It is due a service in 16 days . It has had all Audi servicing and I want to keep it this way. It has 26,000 on the clock. I rang Audi and they said it qualifies for fixed price servicing. Interim would be £149 , Major would be £299. What would you go for?