NTB National Tire and Battery

Went for a tire rotation and oil change the tires I purchased from NTB but at a different location.  Came back and there was a stripped lug nut which they say they did not do which I can tell they did.  It appears they got the nut hung in their impact wrench and took 3/8 ratched extension to drive it out. The tech and manager did not want to take any responsibility over a five dollar part that I purchased at the local autozone.  I was able to removed the nut by driving one my sockets on off a few times.  Granted I know this is a cheap part but it makes me think how many other consumers have ripped off and did not know it. I take care of my things on my vehicle myself and was also told I need front brakes which after taking it too a local shop down the street I was told the brakes are fine and the rotors are turnable. I will not even allow this place or any NTB to do my rotation service which was included in my tire purchase..