Poor Private Wealth Experience from fnb

Since my private banker left, with no warning or notice from him or fnb, I have experienced appalling service on my private cheque account. The new banker (thabiso mathelela) never responds to my emails or calls. His assistant (jan-peet viljoen) used to respond but not anymore. I requested for unauthorised charges on the account to be reserved, dating back to March 2023. This has not been done. I have been to Sandton branch twice to requested assistance. I was told that only the banker can help and that when the branch contacted him, he was rude and that I should log this complaint. I have also requested for the account to be closed. This still has not happened. I have also asked for some debit orders to be reversed and blocked but I was told I need to contact the service provider or the ombudsman. I have been banking for fnb for so many years. It is sad how, for a private wealth client like me, the service level have dropped so low since Covid.