NEDBANK - PATHETIC CUSTOMER SERVICES

I bank with FNB but decided to take a Nedbank personal loan bcoz of their interest rate this was taken in October. In the month of November my Debit order went of fine. In the month of December the 27th I called in the contact centre to advise them I will receive my salary on the 15th as it is a festive month. They advised all was in order.the 12th of Dec. I receive an SMS telling me my acc. is in arrears due to non payment yet the debit order date was yet to come. I went into the Nedbank gateway branch who gave me a fone to use I called the contact centre who advised it was a systematic error nothing was in arrears the debit order was set for the 17th. I received a further call today 15/12/2015 telling me the debit order did not go off yet the debit order date (17/12/2015) was yet to come. She advised me to go do a cash deposit. Which I refused as I know the terms & conditions I signed the 3rd time I advised the debit order date & then called the contact centre to advise them for the 4th time the debit order date is the 17th. Should I be doing Nedbank's job? As it is clear their consultants are utterly useless I am greatly disappointed in this & want a written letter of apology!!!