Fnb ****s me again

So after I have complained for 2 months in a row and not getting all my money back and being insulted by a consultant who totally refused to give me the name and contact of his manager or Supervisor as he said FNB doesn't provide customers with such details, of which I know is absolute nonsense and violation of my rights as a consumer, FNB has let through another debit order and this time double the amount. I complained haven't received response still and they make me pay for these reversals after I specifically told them I did not authorize, so I have paid over R120 for these reversals. What nonsense is this.