Standard Banks poor business banking service.

I have been trying for weeks to get assistance with my business account. Business banking has not responded to my emails and my message left when I called.I am trying to make an international payment but the payment portal claims my cellphone number and email are not recognized as linked to my account. This is a long-standing problem that Standard bank has not resolved. I also have discovered that my bank statements are recently being sent to an old email address that I had arranged with a previous business banker to have changed and which was previously changed. What a disappointing service. Yet another issue with Standard Bank.