I had my new tyres fitted yesterday, no damage to the wheels but a lovely scratch to my rear wing where they have obviously rested something on it then dragged it off, they did of course deny it, and I would have taken it further if I thought it would not polish out, But I did let them know in no uncertain terms what I thought of there standards of effectively calling me a liar and that if they couldn't work on a car without damaging it they should perhaps re-think thier career choice. (other customers in earshot)
Luckily it didn't take much to poilish it out