Appalling Service by FNB Private Wealth Banking Suite

I have recently been experiencing issues with FNB relating to unauthorized debit orders. I promptly raised this through FNB to assist with this. It was two creditors in particular. I stated that both these debit orders are outside of the mandated dates, i.e. the 25th of each month and since both are DebiCheck mandates this makes both disputable. I was quickly told that it is not their problem and I should sort it out with the credit providers. PASA rules clearly state the reasons that would make a debit order disputable and I have yet to hear of a credit provider that "blocks" debit orders from being reversed. This is not permissible. The most interesting experience was when I made this blatant to an agent called Phindile in the retail debit order team who after not assisting decided to promptly end the chat, with no alternative solutions provided. I have stated on numerous occasions that something is wrong with my profile because I am even unable to suspend unwarranted mandates and again I was literally told "not our problem speak to your service provider" by another agent called Seipati in the Private Bank channel. This is surely not the right way to treat any customer. Or is this the service that FNB now subscribes to?