Similar thing happened to me when I had my last car. Had a private shop put a clutch in and when I got the car back the front right fender had 3 huge creases dents in it, looked AWFUL. When I tried to call the owner of the shop out on it and showed him it he claimed they dont even lean on that fender to put the clutch in and none of his guys did that. I put up a fuss and refused to leave until he finally agreed to pay my $500 deductible to get it fixed. I know that "feeling" you have and it sucks, I am sorry.
'10 2SS/RS 6MT, Silver Ice Metallic/Black, CAI Inc Intake, Magnaflow 3'' Catback Exhaust 16483, Llumar 35% Tint, Headlight Armor 20% for Fog/Side/Tail Light Lenses