Branchless and Contactless Bank - No proper customer feedback

I recently used the Discovery Bank app to conclude an application after being pre-selected to apply for credit. Upon completing the application, a declined notification came through and advised me to send through documents of my salary which was done. I continue to receive emails that I need to submit documents yet this step has been done, When I log onto the app, it reflects that my application is being assessed manually and they will be in contact with me. There is no email address or contact number. I understand the new digital approach they are taking however more communication is needed. Clients should not just be declined without context or feedback.