Tracker really doesn't care for customers

I called in early July to find out about cancelling my tracker contract as I was changing vehicles and was getting a vehicle with a different tracking unit. I was told that if I cancelled then the penalty would be R1600 but if I cancelled in September after the debit order it would be R1200. I then decided to wait until September to cancel it. I called last week on 2 September and struggled to get through to anyone. Called again on 3 September and finally got hold of someone who told me it will take 24 hours before I will be called. I heard nothing. I called again on 5 September and was told it actually takes 72 hours. This is already really terrible service and cost me money and time to do something that should be very simple. I heard nothing even after the 72 hours. I then called again this morning and was told by Promise in the cancelation department that she will cancel it and I will get an invoice for R2100 now. She then told me that the amount quoted was only for 7 days. I was never told this. In fact I was told that it would be more beneficial to wait and cancel now. If I was told this I would have not paid another two debit orders. This should all be recorded but Promise then told me that she cannot proceed with the cancelation as I will be charged that new amount. She must now first log a call to retrieve phone records to confirm what I say. This will take another two weeks which means it will be almost the next month and my account will be incorrectly charged. This is not right but I feel my hands are tied. I cannot wait longer and pay more fees. I did the cancelation in time and was fine to pay the penalty as was given to me in July that it will cost now. I am not ok with tracker suddenly added an extra amount and refuse to pay that. I have requested that Promise's manager, Sade calls me but I do not have high hopes. Is there anyone at tracker that can actually sort this out and honour what I was told in July. You are more than welcome to listen to phone records to what I have been told but can that be speed up???