Telkom mobile Do Not get back to clients

The billing has been incorrect since Oct2015. I have called and they said someone from the \back office"will call within 72 hours. Nothing has happend and the billing is getting worse. I called again on the 3rd of Jan 2016 and the same story about waiting for 72 hours. I still did not receive a call from the \""back office\""<br> I have called a few times for the same issue to see if i get a different answer and some agents told me that they do not give referene numbers.<br> I cant believe that the call center agents dont even know the products that telkom is selling. I am getting billed for 8ta net (R198) and nobody can tell me what that is - i myself dont know what it is as I DID NOT SUBSCRIBE for things that i do not know."""