TBH - this guy is trying to save premium hikes on his trade insurance, so will be desperate to keep a claim from going through. I wouldn't let him near my car as you have no comeback if it goes pear-shaped and it could invalidate your warranty.
This happened to me in Jan with my 12 month old Volvo. A guy left the handbrake off his works van and it rolled across a car park and damaged my rear bumper. He worked for a car valeters and his boss phoned me 20 mins later to say no problem they could get my car fixed and the bumper repainted via a contact of his with a body shop - I told them no thanks I'll go through his insurance and get it done properly with a Volvo approved body shop. In the end he agreed to pay this out of his own pocket direct to the Volvo approved body shop - it needed a whole new bumper & trim assy (supplied by Volvo already painted) which cost him £900?
This happened to me in Jan with my 12 month old Volvo. A guy left the handbrake off his works van and it rolled across a car park and damaged my rear bumper. He worked for a car valeters and his boss phoned me 20 mins later to say no problem they could get my car fixed and the bumper repainted via a contact of his with a body shop - I told them no thanks I'll go through his insurance and get it done properly with a Volvo approved body shop. In the end he agreed to pay this out of his own pocket direct to the Volvo approved body shop - it needed a whole new bumper & trim assy (supplied by Volvo already painted) which cost him £900?