I took my vehicle in for some repairs that costed ...

I took my vehicle in for some repairs that costed over $3000, which naturally you're going to pay since everyone over there seems professional and knowledgable. Couple months later the same repairs that were done failed which if they were fixed properly the first time shouldn't have. When asked what could be done, their only response was "if you bring it in, we will work on it and only charge you $2500 for us to repair the repairs we already did". There's no guarantee on their work, and they don't fully inspect every component that is directly related to the function of the part they are fixing, which in turn means you'll be going in in a month or so to get the whole original repair redone. Mechanics over there have this mentality, "Bob I'm going to say we need to fix this, but in the end I'll leave the most important component out, so it will all fail thus they have to come back in and get it fixed all over, because guess what we didnt work on that part".