Tracker

I have a tracking device that was fitted in my bakkie in 2018. Some three months ago I called Cartrack to locate my vehicle. The lady I spoke to said that she can't locate it. I then sent an email asking why are they still debiting my account for a defective product. I Iwas told to change to a lesser amount device which is very effective or a one for bigger amount which is high powered. I again wrote to them and unfortunately they are not coming with satisfactory answer. It seems Tracker is robbing me. Please will you intercede for me.