little rick

Hi guys

Hopefully someon can help with this - I have a MY00 Turbo that I have had serviced at the same dealer for 5years (since I bought the car) - I have just found out that MY00 cars went out with MY99 service books
The difference being the change in the cambelt - from 45k to 60k
I've now had the cambelt done twice (45k and 90K) when according to other dealers I only need to have had it done once (60k)
Still trying to work out the cost difference involved
My 'regular' dealer isn't interested in my complaint and claims they only became aware of the change 6 months ago - wouldn't answer me why when others have been aware for 7 years

Any similar experiences/ideas on cost difference/advice on action?

Cheers