@Kittie0
I really don't know how it works in your neck of the woods, but I recently got my new policy through and it had gone up more than 25% on last year, even though I hadn't made any recent claims. So, I called up the insurer to cancel and, without any fuss, they reduced it massively, basically to what it was before, or significantly lower if I agreed to pay a small premium on claims.
Worth a try, if you are happy with your insurer otherwise.