Worst experience ever with a Panel beater

Our vehicle has been with them for almost 6 weeks due to them causing electrical damage during a repair to the doors. They never reply to email and if you call them they are always unavailable. They caused the electrical damage but originally wanted to try and claim the costs from my insurance for their mistake. Now we are still waiting and we have no timeline or any feedback on parts that were supposed to have been ordered a week ago in order for the vehicle to go to a auto electrician to fix their mistake.