Business Banking Standards Are Non-Existent

My business banker Kabelo Ranoko is non-existent and never responds to emails. Before Kabelo, I had a helpful and responsive banker. I've been trying to submit my KYC documents for months now. Kabelo's service is so bad that his superior, Soyisile, asked Neelam (another banker) to help me. Neelam received all my documents but didn't submit them, and my KYC still shows as outstanding. At this point, moving to another bank makes the most sense. I've been a long-standing business, personal and corporate client with Standard Bank, but the service level has dropped considerably. My other business bank account is with another bank, and they're responsive and can always resolve issues in less than 24 hours. Soyisile and Neelam told me that Kabelo's service is bad because he is new. After trying to reach him for months, surely he knows how to type an email and reply, at least?