Ctrack might let you die while you're still paying them

Please note that I have lodged the following complaint against Ctrack.

I would like to cancel my service with Ctrack. They are refusing to cancel because "I am in a 36-month contract" with them. The reason I want to cancel is that their unit is faulty and they have lost my trust. The nature of this issue concerns my health and safety and I do not want to put my life in the hands of people who have shown a blatant disregard for it. I have contacted the Ctrack organization on multiple occasions to have this matter resolved, unfortunately, that has not happened. The consultants have put the blame on me and insisted that I was not reachable when they wanted to set up an appointment to fix the faulty unit. Fine, I accept full responsibility that all of this is my fault. In that case, clearly, I can no longer be in a contractual relationship with such an organization, we are not a good fit. I want to move to another service provider and Ctrack is completely refusing. The consultant blatantly refused to cancel my contract and I honestly don't know what to do at this point.