FNB is not worth the Business account

Since day 1 I have had problems with FNB business account. A few months ago my business partner and I parted ways. The business bank account was in my name, but my business partner however had access permission. I terminated his access online. Months later, he showed me he was still receiving my business bank statements. Assuming I did not terminate the access correctly I checked my settings on the app. All is correct on my side - so how is it that FNB is sending my bank statements to someone else? I jump on the secure chat. No, they can't help me. I call the call center. They can help me, but FNB is unable to determine how my personal / business account is structured (even the technical guys seem to have no idea). I am told we are going to delete my profile and recreate it - a normal process according to FNB, However, they are unable to explain to me the risk on my business account, nor can they tell me what the plan is if something goes wrong and we can't connect me to my business account again. This shocked me and should shock anyone with a business account at FNB. The operator realized I was very uncomfortable with this idea. He suggests I call my business bank manager and provide details. However, when I call the FNB number provided by the call center, I am told that this number does not exist. I cannot express my frustration. FNB failed me on all the touchpoints: bank settings, the app, the online chat, the online call center, and the business bank manager. FNB is either unable to help me, can help me but cannot address the risk (a basic business concept), or is just not available to me as their client. Whoever receives this message, please get Analene Nefet (FNB business manager) to call me at her convenience. Thank you.