Extremely annoying and bad service

I called FNB today requesting the reversal of my unauthorised debit order, spoke to the lady by the name of Bontle from client services, from the debit order department, told me straight in my face that she won't reverse it, requestted to speak to manager since she is failling to help me, she told she doesn't know where is her manager, worst experience of my life, I work at the bank myself I feel with clients and this experience I wasn't expecting, FNB doesn't have the right to refuse did my money, not even any other bank, that is my money and if I want it revrsed thata exactly what has to be done, now having to deal with such *********** staff is annoying,

2 request, I want FNB to reverse back to my account immediately R520 Debited by VS health, secondly R1000 by African bank before the end of business today, I'm going to take this up with National Credit Regulator if you fail to sort this out by the end budiness today, I'm disappointed in your service and deffinately shifting my account after this mess.