Substandard service from substandard bank

I have power of attorney for my brothers Std Bank Accounts and have been trying since the 4th February 2015, to find anyone in the card division who can help attend to my problem. I have spoken to countless staff members who either cant help me or just hang up on me. I have got no closer to the issue being sorted out and now do not know what the next step is to getting somebody who can help me.<br> I am called daily from a different consultant and have explained too many times that I am trying to get this matter sorted out but to no avail. If I ran my business in the manner that std bank does I would have no clients or business. Their lack of care if beyond mindblowing. I am at my wits end.