Worst service ever - SM78791

I have been waiting on feedback from Telkom since December 2014. the only response i get is that they are investigating, what is there to investigate? this is so frustrating as im getting billed every month, but no one is sorting out the initial billing issue. Calling telkom is also a dead end cos im being referred to people that also cant assist. I urgently need feedback as i am up to here with TELKOM AND THEIR PATHETIC SERVICE.