Not happy with nedbank service

We have been doing business with nedbank since December 2018.We have recently app**** for a corporate credit card with nedbank corporate have been declined due to discrepancies on the financial statements. My personal banker gave me a call and told me that the credit department did not want to process the application any further. This is upsetting and frustrating as we feel that a phone call with details on what the discrepancies were,would have been more professional. Our credit score is on par, as per nedbank, so why not assist and advise on what is outstanding and what needs to be corrected to process the application. We expected more from a corporate division within such a large corporate bank.we are however a corporate client we are not happy.