FNB Prejudice conduct

Hello Peter, I have been banking with FNB first national bank for almost a decade now. I have other banks that are willing to offer me credit cards but my own bank is denying me a credit card based on prejudice reasons. I am really disappointed with this matter and I am actually considering to migrate my personal and business accounts to Standard bank. I am an FNB premier client but I believe that I am being unfairly treated as a client.