Not updating my account

I want my outstanding balance on my account. I have app**** for debt review, but did not proceed with it. Spoke to numerous consultants to ask for my new outstanding balance. As per original contract signed at the dealer, I am suppose to be on my balloon payment as of this month. I have been told that my term has been extended to 84 months, with the installments never reduced. MFC/Nedbank has received the full installment as per original agreement every month. My balloon payment is 54000, my outstanding balance is 84000...no one can assist my with the correct amortizations schedules. I just want my account to be corrected as per original term. which was 72 months and then the balloon payment. According to my records I'm on my last installment as per the original term. And moving on to balloon payment as of this month. And also note that I was never under debt review, why is my account still reflecting under debt review! I have send through the proof to show that I am not under debt review, they rep**** stating that the proof is insufficient as Nedbank has their own Debt counselling department on which you to apply with them. I have never app**** for this. If it is refinanced then 3000*12 comes down to 36000 so why is my statement reflecting an outstanding amount of 84000?