Motor vehicle not recovered by Tracker

On the 7th February 2015 I was hijacked I immediately reported the incident to Tracker and the unit in my car was activated as they send me an sms notification. From then hourly I received an sms stating that the vehicle is not recovered. On the 11th Feb 2015 the vehicle was recovered by locals when I said locals, 10111 was contacted and they towed the car. I then contacted Tracker to let them know that the vehicle has been found, the agent that I spoke to told me that they will de activate the unit (same unit that could NOT track where my car was). My car was damaged and had to go for repairs, it only came back on Friday the 24th April 2015 I again contacted Tracker to let them know that I have the car back I need them to check what is happening with their unit. I was told that I will be contacted by a technician that will make an appointment to check what went wrong, till today no one has contacted me, meaning I am paying for a unit that I believe is not working at and I've been paying for it since April 2011. I am writing this complaint as I am frastrated with the pathetic service I am getting from Tracker.