Not so "Private Banking" from FNB

I am a FNB Private Clients client, but I am very disappointed in the not so "private client" service I've received. In the first place, I can only get hold of my private banker maybe once in 5 times that I call, which doesn't help as I get put through to the Private Clients suite, which does not have the ability to assist with anything, as they don't have the mandate.It seems they are just a call centre. My problem is this: I logged an issue on 9 March 2018 with FNB about my secondary Credit Card (for my wife) as I wanted the payments of the card to go off on the 1st of every month, but for some reason FNB decided the 7th of the month is more convenient to them..I logged the call as on the FNB Online banking I was able to adjust the dates of the payments on my primary credit card, but it gave a technical error on trying to adjust the date on the secondary card.I have spoken to 2 Private Bankers as well as to the RBJacobs Twitter account as I have not been getting feedback.Finally on the 30th of May my new banker came back to me to inform me the secondary credit card payments would now go off on the 1st of the month as requested multiple times by me, but alas on the 7th of June there goes the balance transfer to the primary card again! I am fed up with FNB being unable to solve such a minor request.If FNB cannot solve this little issue I will consider just moving all my accounts to a bank that actually does real Private Banking, because currently I feel like just a number with `FNB and they cannot care less about the issue I have.Hopefully someone in FNB reads this and can solve this problem for me, as my Private Banker/s was unable to for over 3 months!