G'day Milton477
First off have you reported this to the Police? as if the other driver hit you from behind he could/should be charged with negligent driving,(driving to close to you) it is his fault that your son's vehicle was damaged,get 3 quotes,photocopy them triplicate, keep one, and send one copy to him and one to his insurance company,with a letter of demand (preferably written by a solicitor) the claim is between your party and him/his insurance,there should be no need to contact your 3rd party insurer.
You should have 3 day to report an accident if it is over $1000 but, seeing you were rearended he is responsable

BUT I would write the car off with a creased roof and with the money buy another of the same make and model,wallah! spares

as next time it could be you front gate
cheers
Bookmarks