Unit working not working ***

My unit hasnt been working from August 2015, i spoke to one their agent who was very arrogant who refused to put me through to a supervisor because he could not assist me, ive been paying my monthly premiums every month and the compant failed to contact me to inform me that there was something wrong with a unit in my bakkie. When i contacted them on Friday i spoke to an urgent cannot recall correctlyh his name but i think is Vusi he mentioned to me that the last time the unit reported it was in August 2015, this morning on the 10/02/2016 according to Tumi the unit reported in October 2015, they work form the same system but giving me different information how am i suppose to trust them with the security of my vehicles, i have three contracts with Cartrack.On Friday the agents promised to let Phakamani called me up untill today he didnt call me, it was only when i asked the agents to put me through to the company CEO of the company they then put me through to him.I cannot trust the company going forward.