Nedbank Poor Client Service

I have app**** for a credit card and was declined because of my low credit score. I was informed that I do have an appeal option but have to send all my paid up letters, payslips and relevant documents. Its been a week now with no response, i have sent multiple emails to the consultant who just ignores me. I'm fed up, i was told the process only takes 4 days but now its been more than that. Whats worse is that no feedback nor answers im getting from the bank.