Abz: I see your point but if someone claims back PPI payments even when it wasn't mis-sold, it's still obtaining money by deception isn't it? I don't doubt that in your case it was mis-sold, so just to be clear I'm not referring to your case. Making a false declaration on the PPI form to claim money back for insurance that hindsight has revealed you didn't use, is still fraudulent surely?
The PPI fiasco is a one-off thing (from now on, if you actually want PPI, companies will probably insist on 5 independent witnesses being present along with a doctor's report confirming you are of sane mind), whereas inflated whiplash claims will be ongoing with no obvious end to the scam in sight.