Hollard increases premiums without advising me

I have been a client with Hollard Insurance for ten years with car insurance. I was advised about 3 years ago that as I am a pensioner, my premium will not be increased and in fact, my premium will decrease annually if I phone them and give them the current market value of my vehicle, which, as everyone knows, devalues year by year.<br> I noticed on my bank statements that Hollard summarily INCREASED my premium without advising me, instead of DECREASING my premium due to further market devaluation of my vehicle. I sent a complaint online with all my details and contact number and nobody even BOTHERED calling me. I have now just sent another complaint and told them I am contacting my bank to cancel the debit order with immediate effect and to cancel my insurance policy with immediate effect. It is absolutely shocking that clients are treated in this way.