Bad customer service ( still awaiting feedback) after the stress caused by consultant from standard bank

I received a call from Malatji, Mmathabo M from standard bank called me to advised that i am in arears with my vehicle account , i explained to her that i have been paying my account every month , she demanded i updated my account or send documents proving that i have an outstanding fees and interest is added, I promised to send her the document, she advised that she will get back to me the minute she received it, it took me less than an hour to send the documents , she never got back to me, she never even responded , after sending a second email asking her if she received the document. Still awaiting feedback.