Last week I took my 1982 300D to Sam's Club for a new set of tires. All went well, or so I thought...

Yesterday I was doing some spring cleaning of my interior and noticed a "bulge on the floor in the backseat. I pulled up the carpet and found the floor bulging up big time. I immediately looked underneath and saw I nice indentation where something square had pushed in. I then went to the other side and same thing. Also, my car is virtually rust free and they also mangled the rubberized undercoating. Obviously some idiot lifted my car by the floor pans.

Needless to day I was a little upset. So now I have to figure out how I am going to handle the situation. Any ideas?

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82 300D 225k