HORRIBLE INSURANCE

I joined Dotsure insurance August 2013 well I was having second thoughts about this insurance and the name was not fami**** but went ahead and gave them benefit of the doubt, I clearly explained to them that I had a tracking device on already the lady said the package comes with a tracking device and the can not remove it, I told her I don't see the point of having two tracking devices in the vehicle she went on and convinced me, firstly I was never sent a copy of the contract, or stickers to put on the vehicle I kept on emailing this lady but she never posted it to me , Last month when I decided to cancel the insurance I was told that I must pay R200 of the tracker for the remaining 24 months Why did not they explain to me right from the onset that the tracker was separate? when I called in to ask they did not give me a proper explanation I requested for a proof of the voice records until today I'm still waiting, To my surprise they debited more money this month. I cant be paying for useless service. Im feed up of calling them everyday but nothing is being resolved.