discovery bank - :(

I cannot believe that level of service from a bank that punts itself to be a bank of the future. I sent an email on 02.03.2021 to *** for the Attention of Busi, who asked me to send the email and mark for her attention, regarding a matter that was referred to the NCT. I need permission from Discovery to send communications via email. I did not get a response, so i sent the email again on 08.03.2021. Still no response. On 06.05.2021 I sent the very same email again. And as you would have it - No response. I call in and am pushed from pillar to post and still have no response. I try to explain my issue to Nkosinathi today and he tells me to be specific. I told him that I had already told him my issue and he continues to say I need to be specific. And then he rambles on not giving me a chance to explain to him. Then I ask for a chance to speak, then he continues to speak. I asked how was I going to tell him what my problem was when he was speaking over me all the time. The call ended badly with me telling him that he was stupid. The frustration is just too much. All I want is a reply to my email for 4 months now. Cannot believe how useless this bank actually is.