2 sides to the story I suppose – maybe a badly explained till receipt and it was actually a full service, maybe she's just been conned.
they're called bikes and bowls in Elgin and a bigger bunch of incompetents I've never met.
I'll raise you on that one with the bike shop local to my girlfriend. She'd taken her winter bike in there twice to have "an annoying creak" fixed (gf being another one who's quite happy to ride but knows sod all about the bike) and twice they'd charged her £25 and not fixed the creak. They once kept her bike in for 2 days just to change the pedals!
I've got her bike at mine at the moment; used my own LBS workshop and within 1.5hrs I'd stripped, cleaned and rebuilt the BB and chainset (inc all the chainring bolts) , swapped the cassette for the new one she'd bought and completely cured the annoying creak.