Fidelity ADT it's a ****

Fidelity ADT it's a ****. Their security systems are not working and still they require you to pay for their services. It's been more than 2 months now that their security system is not working and 2 weeks ago I have canceled their services but they are not assisting me. The manager from the cancelation department spoke to me last week Wednesday but still the systems have not been removed from my house and the cancelation has not been confirmed. I am tired of paying a service that I am not getting and technicians are not able to fix the problem, so I do not want to continue with this service anymore.