FNB allows our monies to be ******

So I've been blocking telkom and reversing their debit orders on my account for over 3years as I have no business with them. They have taken over R5000 from me during the lockdown period, I tried reversing my monies and I'm not winning with fnb as they say I can't get my money back... I constantly have to move my money from my cheque account, I went to the branch to report and they sent emails to request a reversal of my money, instead of getting my money I'm getting threats from FNB that they will now charge me R120 per failed debit order and that I now owe them money for failed debit orders from people that aren't supposed to be deducting from me in the first place.... Can't believe I've been loyal to these ****bags