WHY STOP DEBIT ORDER REVERSALS, YOU ARE ALLOWING *****

For the life of me I don't understand why FNB has taken away the option for debit order reversal, this is not available in their branches, Internet and mobile banking and when you call the call centre it cuts you off with no answer or assistance from a consultant!!!!! R780 has be debitted in my bank account by name I don't even know and its the first time they are debating this money and I have not app**** or registered with any service provider in the past 3months. Is FNB working with these ********** to debit our accounts and refuse to do reversals? Is their way of recovering from the covid impact? I want my money back, I want a debit order reversal from these **********, FNB do something!!!!!!!