Frustration with change of surety and SBSA complains resolution not assisting

Challenge with SBSA who can't resolve a complain through their Complains Line. Case No. ***2. After writing a review on Hellopeter, I got assisted with the change of suretyship on a student loan. A new agreement ending ***1000 was signed, debit order processed and first debit order duly paid. I was assured that the old surety contract will be cancelled (contract ending ***2739) and all monies paid transferred to the new contract. However, SBSA decided to continue debiting the two accounts (new surety and old surety). When I lodged the case referenced herein, I am thrown from pillar to post in resolving the matter. The annoying thing is that SBSA is sending threatening messages that the student account account is in arrears when they fail to reconcile the the query at hand and do the right thing. My time is wasted on telephone calls and emails that do not resolve the matter. This is exacerbating the frustration I had during the transfer of suretyship, spending hours at the branch due to poor customer service. Please sort out your systems!!!!!!!!