I read with interest MH of Camberley's letter re breakdown cover. I have had several identical conversations with a number of organisation covering domestic energy, telephone charges and more recently car insurance. I had my E-Class Mercedes-Benz insured with a very well established breakdown/insurance brokers. I upgraded the car and went onto a comparison site to get an idea of how much more a newer version would cost to insure. To my surprise I saw that my current insurers were offering identical cover for only £30 more. I telephoned my insurers in order to upgrade, but I was told that the current underwriters would not upgrade me as the car was too expensive to insure. When I pointed out that they were prepared to accept me as a new client, they said there was nothing they could do, and furthermore it would cost me £107 to cancel my current policy. I had no option but to pay up, but I consider this to be corporate theft.