A horrible insurance

A ****!! I got a quotation from pineapple and before I signed the contract, they installed a tracker device in my car. A few weeks later i decided to go for another insurance company ( I hadn't signed the contract yet) A year later, I started getting calls and emails from tracker saying that I owe them money, which was shocking to me since I use CarTrack. When I called they told me that pineapple signed me up and has now stopped paying for a tracker that I'M NOT EVEN USING btw, so now it is my responsibility to pay for it. Instead of canceling the insurance, they just stopped paying for it and didn't even inform me that it was already activated or atleast tell me what I should pay. Now I'm indebted because of pineapple insurance!