Useless Private Client Service

After 2 years of being a private client for FNB I have actually just wasted my money as nothing asked for gets resolved or it takes months for feedback. I have asked for assistance by calling the private banker call line, the secure chat on the FNB app and even trying to speak to my personal banker and why do I have to follow up with the private banker a month after asking for information. I am still waiting for the Global account issue to be resolved and waiting for feedback on the personalized interest rate. To add to this you started hounding me to migrate my home loan to FNB and pay more money just so my private banker can get nothing done! The service was much better when I had a gold easy account and you wonder why I want to downgrade to a lower account but your team can even get that right a month after asking for a downgrade. Is there no other solution to this other then moving to another bank completely?