Netstar *******ly deducting trackers from my account

I have been with Netstar many years. My NP200 (ND 64377) vehicle was written off and replaced with a similar vehicle (NUF 66103), I called Netstar to have the tracker moved from the one vehicle to the other. Only to find out they installed a new contract in the new vehicle and kept the old one. I called and was told they will correct the account and refund me.

Few months later it was still not corrected, so I called again and was promised the same. On 26 August I called again and only to find out there is also another vehicle on my account which is not mine., Ref T*** The Reference for this call is CAS-***-G0P6. By now Netstar have deducted over R5000 from me *******ly, and there seen to be no way to get them the fix it. Maybe I am not the only one being ********** by Netstar. Not a happy customer..