VERY DISAPPOINTED IN YOUR SERVICE.

Very disappointed with the service. Sold my car in August. Informed Cartrack. Gave them an address and contact person. Got an appointment for the following day at 11am. Kept calling to check on the update and was told a technician will go. Days later the technician never went. The car was sold. I got a call from cartrack saying i need to pay R870 for de-installation and re-installation on the new vehicle ill be getting. Mind you the de-installation never happened. I scheduled the payment given that i did not want any interruption with my service on the new vehicle ill be getting. October towards month end i start getting Whatsapp and smses saying i owe R600 for device replacement. I called in to understand what was happening and im being told that i "agreed" to pay the R600 since they did not "find' the device. The very same device they never went get. The lady, whos name i forgot, said she will escalate the matter to her supervisor and also look for call record then she will get back to me. To this day im still waiting. I keep calling calls regarding the outstanding money every single day. Now i got an sms that says ill be blacklisted if i dont pay. How is this fair?? Its like they deliberately did not go so that i could be charged. And what happened to the investigation??