paying for the service which am not receiving

I am very much frustrated with this company and i do not know how best to express my frustration. I traded my car last year November and ask to cancel as the car has been traded in. They could not cancel the contract, I called asking for options as it did not make sense for me to pay for the services that am not receiving. I then wrote in this platform in order to get assistance. One representative of Telematics called me and I asked if its possible to transfer the contract to my new vehicle and I was told that the consultant will call me to arrange. Indeed a consulted called to arrange for the fitment. to my surprise when i receive the statement both cars are on the statement. The car that i have traded in and my new car of which i though the agreement was to transfer the contract to my new car. How can this be happening i do not understand and it is very much frustrating to be dealing with this company. I am asking my self if the car was written off it means i will still be paying for the tracker like now that the car has been traded-in. I will not recommend this company to anyone of my friends or my family because it does not serve the purpose. I am highly disappointed to tell the honest truth.