No response and poor service

im disappointing with the lack of service from FNB, we have an active Business account and we recently requested an overdraft on our Business account, which was declined, we send an email to a relationship manager at our branch in North-gate on the 27th March 2018 to re look the application and advise of a way forward as we require urgent assistance, to date we have not received any reply nor acknowledgement of receipt, we visited the branch on the 31st March only to be advised that relationship Managers left early, we have since send a second email which i doubt if we will get any assistance this time around, the lack of urgency and ignoring of clients emails is unacceptable coming from an establishment that speaks so highly of their customer service.