FNB Harassing its customers

I am being harassed by FNB call center agents on a weekly basis over my home loan debit order and yet this is something I already addressed with FNB officials (emails correspondence on hand). This is pursuant to me having notified FNB (as well as my other creditors) of my salary payment date change back in October 2017. Despite my official communication of this fact, they still attempted to debit my account on the incorrect date and I had to call them and instruct them to rectify this. Needless to say, they didn't rectify the account. After I reported them on Hello Peter they made empty promises that they realized their record do show that I followed the correct procedure in reporting the date change it was in fact their own fault that it was not captured on their system. I have dealt with so many officials (Silvie Pather, Mduduzi Mbatha & Patricia Khoza to name just a few) and they all seem TOTALLY clueless on how to resolve this issue. Now I get calls from under trained and irrational call center agents who fail to look into historical notes system on my account. They lack any form of discretion and instead keep insisting that its not their fault that an FNB employee failed to capture the change of debit order date (Huh!!) So I ask who is at fault then and do they expect me to leave my place of employment and got to their home loans department to capture these details myself??? My account is NOT in arrears but my bank profile is impacted by NAEDO debit orders every month, why must I be impacted by FNB's own ineptitude? Why must incure additional bank charges for their failure to follow simple instruction? Why must I be subjected to their weekly harassment when I am not at fault. My next level of communication will be directed at the FSB and I will move my home loan to another service provider, I am done paying for such shoddy service by *********** FNB officials.