Not being funny TC, but I remember you whinging about M&S insurance
last year.
You can't move because of your pets ongoing conditions. Unlike car insurance, pet insurance isn't a legal requirement, so if you were really so hard done by you would self insure as I suggested last year, but it sounds as though your actually getting a pretty good deal as you made over £1200 worth of claims last year and I'm guessing you've made more since then, they have to make money somewhere.
PS I'm still paying over 1k for my car insurance- and that's with no claims and a year older/wiser, if that makes you feel any better.