Worst Tracker company ever

Worst Company Ever. I requested a upgrade of my current system, no one contacted me as I spend Airtime voucher after Airtime voucher contacting them to find out when they can do it. Aside from this upon requesting a upgrade, my old system was deactivated so in the interim no Netstar but I was paying for it. I was not even aware as Netstar cancels units without informing customers as I did not request a cancelation in the first place, untill I seeing my double debit as a charge for canceling. I would have sued Netstar left right and Centre if something happened to my device. Worst Tracker company ever