Case open Case closed without any correspondence

I received two huge data bills (around R5000 per month) last year. After many e-mails and long hours in the Melrose Arche branch (with a very willing Gugu who was struggling with systems off-line and phoning others to try and help). I was eventually advised to pay the bill excluding the data until the data issue was resolved. I then was told that getting an itemized bill could take up to 6 months. Later I was informed that I am only able to see my itemized bill for the data if I am taking the matter to court. (Is there a law that I am not able to see my itemized bill?)<br> At some point the debit order paying my bill was cancelled without notifying me.<br> Having difficulty getting into contact with the contact center I submitted my enquiries online. Twice a case was opened and closed without any communication with me. I managed to get in contact with Samantha at the call center. She re-opened one of the cases which was closed again the following day without any communication with me. She also promised that Samina Omar (manager) would phone me back which never happened. Samantha gave me Samina's direct phone number. I have called this a number of times. There is no answer at this number