Miller Chevrolet

Took my car to get the service cruise control lights fixed. I agreed to the initial quote of 800+ dollars but then of course they came back to me with an increase of 2600 dollars due to have to replace a few more parts. They called me and told me the job was complete so I paid the bill of $3400 and when I started the car the same error was shown on the dash. I drove the car right back into the service shop. They called me the next day and tried to tell me I needed a new front camera for another 1500 dollars, I said no, fix it. Of course the next day they called me and it was all ready to go and no new camera was needed. Also I looked up the parts that were replaced online and of course they are half the price from reputable websites including GM's parts website. The reason why I don't feel satisfied is I don't believe they tried to troubleshoot and fix the problem, only replace the parts. There was no evidence shown that the parts where actually tested and found to be unrepairable. Just rip all component related to the cruise control and replace them, costing me $3400. I'm very suspicious that one of the more expensive parts that was replaced didn't need to be, but I'll never know because that info was not provided and the part is trashed.