In a letter to my Father detailing their reasons for retrospectively cancelling his NCB, the Insurers say nothing about it being due to him not notifying the Event. A number of posters seem to be of the opinion that because someone is involved in an accident which may give rise to a Claim, The Insurance Company is entitled to cancel their NCB before a Claim is actually made. This is unjust in my view as the possibility exists that a Claim may never be made. I would also wonder about the legality of it. But then of course Insurance Companies seem to be a law onto themselves.