WORST SERVICE FROM TELKOM MOBILE!!!!

I had taken out a cell phone contract in Oct 2014. I was told that it is an unlimited data package, only to find out on Monday (27/7/2015) that my internet usage has been paused. I called the call centre - they guy said he knows nothing about this. When I said I needed it sorted and needed to speak to someone else who could assist- he conveniently found that it was a special running for 6 months( to which I had no knowledge of) . he then got his team leader Sihle to speak to me. All he did was say his name and asked me to give him a brief description of what was going on. Before I could even start talking he cut the call! To date I am struggling to get ahold of anyone to help. I've just been transferred from pillar to post... IS THIS THE TYPE OF SERVICE TELKOM OFFERS !!! CAN SOMEONE URGENTLY ASSIST!!!!!!