Hi guys,
So after my mechanic installed new wheel bearings he did not put the bolt on the brake caliper back in correctly. This ended up coming loose and scraped all around the inside of the wheel

Now the rear left caliper has warped and needs to be replaced, does anyone have a brake caliper to sell or able to point me to some one who has one to sell?
Or do you think its my mechanics responsibility?
Thanks, any help is appreciated.