Paying every month but the units weren't working

<p>Dear Tracker.</p> <p>I have a tracking units installed in both my vehicle and my wifes vehicle. Because I was highjacked before this is most probably the biggest have to pay expense in my budget. The reason why I have it installed in my vehicles is becuase my kids are small and you cannot compare any money in the world to when a vehicle is highjacked with them still in the vehicle. I bought my vehicle and my wifes brand new about 4years ago. The other day my brother said that Tracker have contacted him regarding his unit in his vehicle. Immediately the same day I lodged an enquiry on Trackers website to question if the units fitted in both my vehicles are in working condition. I was then contacted by Tracker and asked for the units to be replaced in BOTH vehicles because they apparently had problems with signal strenght. Now my question is for how many months did I pay for units in my vehicles not working? What would have happened if the vehicles were highjacked with my kids in? And in the total period of almost 4 years you have never contacted me via sms,email or telephone to communicate the units in the vehicles performance. So my statement to you is the following either you pay back my installments for both the units for atleast 6-12 months or this loyal customer is leaving Tracker. The choice is yours and if you don't give me what I demand please contact me so that we can cancel my service with you as soon as possible.</p> <p>Regards,</p> <p>Mr.FJ du Preez</p>