3rd time tracking until faulty in 5 years

I've had tracker device in my vehicle for 5 years and in this time period I've had the unit replaced twice as the network has not received a response from the tracking device, and now today I get an email advising that the unit isn't responding to the test I requested last week. So basically I am paying for a service I am not receiving. If my vehicle is hijacked my family would be left at the mercy of *********.<br> <br> I AM SO EXTREMELY P.I.S.S.E.D off right now that I want a manager to call me and discuss this issue.<br>