The worst customer service

I have phoned Nedbank MFC 7 times and was on hold for over 20 min each time. I have sent 6 emails and received responses that don't address my issue. I sent a Twitter complaint and was given THE SAME email address that I have been sending emails to. I just want someone to call me! If I owed money I wouldn't have to beg you to contact me. Why am I begging for customer service so that I can pay my account? It is ridiculous really and frustrating. Your consultants respond to an email and don't answer what you asked for and totally ignored my request for a call. I would just like to speak to a human being! Its not that difficult. You will tell me that I am changing too late and missed the deadlines for the month of May.