Unwillingness to help customers

I went to Nedbank on Wednesday, 27 November to try and reset our NPO's pin number for internet banking, only to be told that sorry, they can't help me and isn't even going to try and help me. As all 3 directors are in different provinces, it is physically impossible for all 3 to go to the branch to change it. The previous time the bank manager who set it up, promised that she changed it so that only one needs to sign. So in effect there is no way to access our funds, and no one willing to help us. I am really beyond frustrated and unimpressed with Nedbank's lack of willingness to help their clients.