Horrible service from both cancellation department and Account department they gave me the wrong and misleading information and never cancelled my account after paying off the outstanding amount they say I should pay

Horrible service from both cancellation department and Account department they gave me the wrong and misleading information and never cancelled my account after paying off the outstanding amount they say I should pay. I still need to pay Cartrack this month even after I paid the cancellation fee. Im really disappointed of they service especially the lady named Thando from the cancellation department who hang up my call did not even want to hear my dispute.