Non-delivery & harassment to pay

I'm Continually being harassed by VVM who Vodacom has handed me over to.This is outrageous as I was charged for 3 months internet connection,of which I paid but which was not provided by Vodacom.The accounts department could'nt find my payment until I contacted them after I'd been disconnected.I was then told that they had found the payments&that I would now have to buy another sim card.I told them I wouldnt have a problem in paying for my contract once I received a sim card from them without me incurring additional costs for their mistake to which they agreed.I am still waiting for this sim card.I wont continue to pay for something in which I paid & wasnt provided & then made my problem to get another sim card for their mistake.I was eventually then handed over to attorneys to whom I sent all the correspondence&they didn't contact me again.All of a sudden I have now been handed over to another attorney who doesn't allow you to contact them directly&continues to harass me continuously.I have even written a letter to the ombudsman in March 2014 setting out these facts.Vodacom needs to rectify this immediately as I am incensed at being harassed because of their complete incompetence.