Nedbank is pathetic!

I am at a loss for what else to do. I have spoken to a total of 15 customer consultants, been to every department from client services to legal, I have spent a total of 2 and a half hours of my phone time and sent several emails, I have given you all the details required and still you cannot cancel one debit order, for a bond policy that should no longer be running????? I started this process 25/3. Does Nedbank even have managers? if so PLEASE can one get back to any one of my emails!!!!!!!