Vodacom incompetency is on a level of its own

This is my 3rd review in a month on Hellopeter about the same Issue. This is above talking to various agents about the same thing over and over again. Literally Vodacom has the worst service EVER! I have been trying to cancel MyMeg R250 MBB since January. Ultimately this should have been canceled 4 years ago with an upgrade, but low and behold never was. Even after My hellopeter posts, I got calls from Vodacom agents to say this had been sorted but then I got my invoice this weekend and IT STILL HAS NOT! I wanted to do an upgrade in January but refused to do it until this was sorted out, because Vodacom clearly keeps adding items to your statement (as in my case). Is there anybody is competent at Vodacom? I'm not even asking for a refund, just a damn cancellation.