Frustrated loyal client having no success with approved overdraft.

I don't know how else to get Standard banks attention, I know I am not the only one that has experienced this. I app**** for an overdraft on my cheque account. I was approved straight away last week Monday. I had app**** on the app. And submitted the documents on the app at the same time. It said 24hrs and fund would be transfered. Then I made double sure that they had the docs as I said it again on digital fulfillment email address. And still no success. I then phoned twice and was told to email dfc escalations. And after two days someone rep**** and apologized. And forward my problem to someone higher up. Still no success. I mailed them again to see if anyone replies. Still no response. I have been with standard bank my whole life and never been so frustrated in my life. Please assist urgently.