recently my friend got a complete bike from "them" and they did that same chain thing to her bike (not to mention incorrectly installing the tires causing a massive and potentially dangerous blowout).
I took my bike in there and it came back with a scratched frame... AND they installed a part that I hadn't asked for because "it doesn't matter, it's the same thing"... so much for customer service.
numerous complaints about that shop.
lazy. lazy. lazy.
can't be a star with a track record like that.
but hey, what are you gonna do?