Non Responsive & Useless ABSA Private Banking & Bankers for R460pm

I am an ABSA client for the last 16 years. I have various products with the institution. A few months ago I asked my private banker,Thandi Modipi, for my banker to be changed due lack of responsiveness and subsequent inadequate feedback. I followed up again last month, to which she has not responded. I have emailed Private Banking Assist, to request the same, again no response. I have logged on to the ABSA website and twice logged a complaint under Private Banking, again no response. I am officially fed up with ABSA. I demand a refund for the non service over the past few months.