Total lack of customer service placing clients property and well being at risk.

I have reported a non functioning device 7 times to tracker (via their app, their site, service e-mail, their non existent call centre, which cuts you of every time, to no avail) without any contact from them to resolve the issue. This unit has not been functioning for 2 months yet I get billed for it. Tracker, you are committing ***** by collecting fees for a service not rendered as well as putting my property and family at risk due to your utter disregard for your contractual obligations, and total lack of service. Please note that you will be held liable for any damages incurred due to the non functioning of your unit. As I cannot get you to respond in any way, my next course of action will be going the legal route and/or stopping all payments till such time you remedy the problem.