Bahaha! Are you serious?! Please name a shop in Toronto that someone hasnt bashed for doing shitty work on. This happens all the time, its par for the course. Someone is bound to feel ripped off regardless of the job done. If you own a shop eventually someone will bash you. The internet makes it even worse these days.
Shops like Intense, SG, TAG, etc. quote a price and stick close to it, sometimes they lose money because of that. They arent like dealerships that will quote you a price and if they need to do 10 hours of extra labour because the car is rusted or needs un-fucking they will charge you for it or you dont get your car back. In my opinion thats the way shops should be run but guess what everyone modding their cars is too cheap and doesnt realize its not a simple process (even though it may seem like it) when adding something that wasnt designed from the factory.