Terrible Service from Netstar after doing an incorrect tracking unit migration

Terrible service from Netstar after doing an incorrect migration of a tracking unit. Have several cars fitted with their tracking unit, after buying a new vehicle and asking that they migrate a unit from a car that i sold they went ahead to cancel a unit on a vehicle that i still own. I have been given the run around and the vehicle that i still own has been moving around without a tracking unit. Call centre agent Khanyisa refuses to give their surname saying the company does not allow them to do so and hung up when i asked for their managers name.