No intention to service a Loyal Prestige Client

As a Standard Bank client for more than 15 years and now a Prestige Client, I am supposed to have my own dedicated banker as it is a service I am paying for. In my case, I have no dedicated banker and when visiting The Vereeniging and Three Rivers branches, I have to stand in the normal queue because their Prestige Bankers are all on leave or unavailable?? To make matters worse, when I have queried over Twitter as to who is my dedicated banker, no response is received. Last week, again I tweeted Standard Bank 3 TIMES!! They had more time to respond within 40 minutes to every other client besides me. More than 24 hours had passed and no response was received! I have the screenshots to prove this. They are honestly a really poor customer centric organisation and I need to move my account and can;t be paying such high banking fees for no service whatsoever!!