Sold a car with 3 year free servicing to find out ...

Sold a car with 3 year free servicing to find out that's a pile of rubbish and I should have paper work to back what I said up .. sorry I've not bought a brand new car before I didn't know exactly what papers I needed but when it comes to getting a new car I wouldn't dare waste me time signing up to contracts of bull thanks for the waxa