Telkom Mobile offers bad service to the South African consumers

Telkom Mobile suspended one of my lines that I have with them, I then contacted them I spoke to some guy by the name of Solomon who had no clue what he was talking about and when I asked to speak to his team leader he tried to stop me from doing that trying to convince me. I then told him to let me speak to his team leader or else I loge a complain about him, he then placed me on hold for sometime and then the call was just stopped. I then called them again I spoke to a lady that finally put me through to their team leader that went through my account with me. She then promised to send an email to their collections department and further stated that she will forward the email to me as well of which she did, later that same evening all my lines where suspended I then called in the following day and was informed that she was off on that day I should call back the next day. I called in on the day around midday a lady told me that she was busy and I should provide my details and the lady would send her a email to call me, that never happened until 18:20 on that day I then called again I found some other guy who placed me on hold for 30 minutes and my call was then sent through to their survey, I then called them again and spoke to some guy who said he was second in charge I then asked him to find her for, he went for a couple of minutes and came back to and told me that she was not available and he couldn't find her in the building and that I should call back before 21:00 on the same evening I thentold him that their supposed to be providing a service to me and they should try to resolve my problem he couldn't help me till now my lines are suspended but I have paid them. where can I report them