FNB is a disappointment I must say

Hayi I give up, I have been asking to reverse a single payment that I didn't not authorise and even if you go to the bank they don't help and worse they going to debit my account yet again these people. I am cross, frustrated and feel like crying cause FNB is not helping and no one wants to assist instead there send me to the app which is not assisting in reversing my money and I never had an agreement for these people to take off money from my account and I then call the service provider they say they won't reverse that money and FNB is not helping at all. I am so frustrated and disappointed allot shame in this service I am receiving from FNB as my bank are they not suppose to protect me as a customer and when you call to reverse or log a ***** they don't assist at all.