we've had a LOT of those pop up recently. they paid an ad agency to put "locksmith, 24 hour service" with phone number stickers on every commercial door in the city, and the number's not even in service. Found out it's dispatched out of toronto (two hours away) and they don't actually have anyone in the area.
Even if you're only seeing 40% of the bill, it's better than 100% of a job where you say 'do you want fries with that'. Look into and get lots of references
keys, we don't need no stinking keys!