FNB Home loans dismal service

I have sold a flat that was under FNB home loans back in April 2021. And I kindly asked them to facilitate a quick sale, but to this day It never happened, and they continue to demand full installment of the flat even though I went into debt review before selling the flat, but still the debit order was never cancelled/amended as per the instructions of the court order received from the debt counsellors for some reason, I am not aware of. The reason I asked for a quick sale, was because my Wife has lost her Job, and we could not afford the monthly installments anymore. 5 months later in the first week of September, after being taken from pillar to post by *********** FNB consultants and after I have raised the issue here (Hellopeter), there was some progress. I was furnished with multiple papers to complete, sign and send back. And among the documents was an acknowledgment of debt (AOD) form and debit order authorization forms, which are legal documents that were addressing the repayment of the shortfall. And it said, I will start with the repayment of the shortfall on the 25th of September to pay a certain amount for a period agreed between me and FNB. To this day that legal document was never captured and enforced, and I don't know why, and the full installment debit order still goes through my account, which I obviously can't afford, due to the reasons stipulated above. I want to know why the documents that I signed and submitted to FNB were never captured and processed, and why the debit order to this day was never amended to reflect the new agreement to address the shortfall instead! This process needs to be halted as it accumulates charges against me. I want the charges accumulated after the signed documents in September reversed immediately, since there's a legal document, I signed to address this.