No outcome on new application for weeks

Have been trying to get a new application for my boss sorted since we started making enquiries on 27 November 2018. Eventually a telephonic application was done and supporting documents was submitted in January only to be told to call the after sales department for the outcome. We do that and the after sales team says they have nothing in the system in relation to the application, neither do they have notes regarding these past few weeks interactions. I forward the email trails to customer care and social media address and get no response. Why is it that they don't know how give proper customer service telephonically or via mail? Been the most frustrating company to follow-up with for something very simple. All we want to know is the outcome of the application. Can someone just respond so we can have closure?