Better check if they did anything to your car. Vulcan Motors Bosch service garage they took my car into, claimed they adjusted handbrake travel. It was going high 6-7 catches up to brake properly and still goes 7 after their service.
On the list they informed that rear screen wash was checked. If they have done it (or opened eyes when doing it) they would have noticed it was never working in my car.
They also did overcharged engine flush (£25) in new car and informed me that my car's manufacturer had recommended it. First, it is not recommended at all, and BTW other local garages do the same for £6 (ha ha).
Problem with PrestigeCarServicing is that they can take your car to any crap garage and you have no idea who and what is servicing it. I got the garage name from them after I spent some time complaining about screwed up service.