Harsh Business Practic

I had an outstanding amount with Tracker after<br> I sold the car I had with their tracking system.<br> The amount remains the same for two years<br> with no additional amount being charged.<br> In February 2015 I decided to settle that<br> amount, bit then Tracker decided since I've paid<br> that amount then they can charge me a further<br> R1200 but there was no mention of that R1200<br> in the past two years.<br> Fine, they only informed me about the R1200<br> just over a week ago, but already they have<br> already listed on my credit report that I have<br> not paid the account for more than R150+ days.<br> How is that possible that you inform me about<br> an amount which you say I owe this week, but<br> the following week you submit false information<br> to the credit bureau.<br> I have sent them countless e-mail asking for an<br> explanation but all I seem to get them going on<br> the defensive and referring me to their lawyers.<br> They will be nice to you when they still want<br> you to buy their product but treat you like<br> nothing you have purchase their product.<br> How do you even think of referring friends and<br> family members or even buying their service<br> again when their customer service is this harsh<br> and bad?