Worse Nightmare Ever

Since last year I'm battling to get my case solved with Debtbusters regarding FNB Account that I'm still paying ,but I already finish the account. According to Debt busters they are still waiting for feedback from FNB to adjust the interest calculation. This is going on from November last year and my concern is that Debt busters who are suppose to be helping you can't do anything about this. They are in fact allowing FNB to abuse their clients.I have reached the end of my debt review but are stuck,because Debt Busters can't help me now. FNB now is owing me and Debt busters couldn't be bothered,because they are benefiting from this.