Leamington Chrysler

Brought my car in for an inspection, and after $1000 of work it had to go back in 2 weeks after for something they had already worked on or "inspected". another week after that, three codes came u in my vehicle in another area worked on by Chrysler, when inspected again I was told it was "unrelated" to the work they already did in that area, even though in the three years prior I've had the car there has been no problems.