Unhelpful Standard Bank Call Centre

I made an application online. I emailed the documents as requested. No response. I phone to follow up but because I don't know how long I have had an account, other than years, I failed validation and have been told I cannot be helped. This is ridiculous. How am I supposed to remember the month and year since I have had an account. So now I have to go to another bank to assist me as I have been told by the call centre agent that I cannot be helped because I cannot remember the date I opened an account. So pathetic.