So my mum hasnt really ridden her Bike in several years as her back has been playing up, but last summer she decided to get it serviced and looked over by the LBS so she could try and get out on it.
They charged her for a full service a and front mech. she went out on it once and it played heck with her back, she also complained the front rings were not working propperly and making a lot of noise so I swapped the parts on to a much more compact frame. and found the mech they had charged her £40 fo fitted on top of the service, was a 9spd mech and her bike is a 8spd, they hadn't even lined it up so the bottom of the mech ground the top of the chain rings.
Unfortunately the shop has since closed down,not a big surprise if this was the work they were doing, but they were ment to be a high end shop stocking cove, and the likes. I ave a good mind to go round to the ex owners house and have a word.