Standard Bank no Longer Value Business Banking Clients

I have more than one business banking account with Standard bank. I use to have a dedicated business banker that I could contact if I need help but Standard bank went and changed everything. They moved my business banker out of branch and I can no longer go and see her when I have a problem and it is now impossible to reach someone to help me. The channels that is still available is useless and even the person working with the complaints for Standard bank Business seem to be iterated and not in the mood to help. I now have a problem with my business cheque cards and I have spoken to three different call centers and no one seem to know how to help me...