My secretary (this happened years ago) bought herself a nice secondhand Ford Escort, 1981 X reg. Had it pinched from the CoOp Shopping Giant car park three months later. She tried to cancel the policy as having third party only cover she couldn't afford to buy another car and, rather undrestanderbly, resented having to pay on the drip to insure a car that turned out to have been used to get away from a post office blag and was subsequently set on fire. She was left, no money, no car and still a direct debit to insure a pile of ash next to some singed bushes. So I told her to tell her insurers to just suspend her insurance until she got a replacement car which she did and they agreed. They were a bit annoyed when it turned out to be three years before she got a replacement car but fair play to them they honoured their agreement.