Personally, I would have stopped the work right away and gone somewhere else. Also, they quoted you a price, but then changed it on you many times. I would be furious. They then messed all of that expensive work up, to top it off.

This place has the foul aroma of a shop that's not on the up and up. I do not know them, but will never forget the name if ever do run across them. What a sad company, I feel bad for your experience.