Terrible customer service.

I called Discovery three times today to close my account, first and second call I was holding for 13minutes then the call just ends third call 20min and the call ended. They told me that if I ask the consultant to call me back it would take three working days. So they advised I hold on for the accounts department. I understood last year when I joined the bank that it’s still new so the service might be horrific but now after so many months to hold and not even get help!!!!