Just to update this , partidge have a mechanic called jim who really was good and knows the cannondale very well . there was a broken spring in my forks and the oil level was low although it hadn't leaked , so can only presume i had a friday afternoon bike . Its sorted now no charge and certainly not a service issue .
Didn't get any reply from cannondale and I can't really blame the LBS if cannondale are not giving them proper support . The whole idea and promise of a warranty from a top company like cannondale is that you can go into any dealer and get your bike fixed if it has a fault . Its no different to cars bikes or anything else you expected to travel with .