NEDBANK - BAD SERVICE AND NO FEEDBACK

My company was ****med. Money reflected on my statement as well as a received SMS from NEDBANK stating "available balance"on my account. I refunded the "customer" back as per balance sheet from my bank and noticed a negative balance on my account the next morning. I immediately reported it to the NEDBANK ***** department and SAPS. Within 14 hours of the transaction, I called on the bank personally to "recall" the transaction as it was "pending"on my statement. The bank personnel had no idea how to recall an pending EFT. I have never authorized an overdraft facility on this account, yet the EFT was processed without sufficient funds in the account. I have NEVER received any feedback from the ***** department of NEDBANK ( 2 weeks later ), the REGIONAL MANAGER in KZN, whom has apparently made this a "priority case". Their is absolutely NO FEEDBACK from NEDBANK in regards except reminding you of the negative balance and additional costs to be charged.