Cartrack and App

I have bought a new vehicle and installation of a new unit was done. Since day one the CarTrack app does not indicate where my vehicle is, but always reflects the same location not near me. Is this what is expected of the company and app. Why do I even bother going for Cartrack whereas I never had issues with Netstar. Do I just cancel my subscription. How can I be liable to pay a premium for no service. Please advise