Horrible service by cartrack

Cartrack consultant offered me a new contract on my traded in vehicle, they said they are installing new devices therefore no need to do a deinstallation and reinstallation. They installed a new device, but are still billing me on an old contract. They are refusing to cancel the old contract while they put me o a new one, while I'm still one person and one car. I'm taking them to the CGSO. They are also refusing to listed to the recording by their UCC consultant who offered me the contract.