No private banking support and uncontactable

I have attempted to contact my private banker for over a year. I have contact Standard bank on multiple occassions where I received the details of my Private banker and He has not responded to any of my mails. I have even tried to call and this was unsuccessful. This is for my business, please contact me so I cancel and change banks. It has been a nightmare trying to run a business where there is o support which is paid for. The name of my banker is Brandan Naidoo.