Terrible service

Wow I am really surprised at the terrible service I've received from Tracker this past year. I bought a new vehicle and had to install a tracking device. I called Tracker and they told me there is already a Tracker installed in my vehicle. But it was not working properly. So a technician had to come out and fix it. I tried calling several times to arrange it, and I also emailed. Nobody got back to me. So I tried Netstar and received great service. 2 mnths ago I realized the Tracker debit order was still going off. What a mission to cancel that debit order. They said they will call me to confirm cancellation. Nobody called!!! I think they tried once. I called again 2 wks later to confirm. They once again said they will call me but that there wont be another debit order for my account. Beginning of Oct the debit order went off again. I called them again. And now I hear I have to buy out the contract! What nonsense. I never signed a contract. Very very unhappy!