incorrect information, breach of contract,

NEDBANK did not debit my Cheque account for my Homeloan as agreed. NEDBANK rather sent my account to their collection, who called and humiliated me by saying I did not have funds. On the 18 september, I confronted NEDBANK with proof that I had funds. NEDBANK changed their story and said my account was closed. My bank proved NEDBANK wrong, my account is active. NEDBANK changed their story again that there was system fault. NEDBANK promised someone will call me before close of business on the 18th. Today its day 7, 25 September. I am still awaiting NEDBANK's response.