Vodacom ***** dispute has failed me!!

I logged a dispute with Vodacom in March over a **********ly acquired contract with Vodacom on my name. I submitted all the relevant documents and their forensics acknowledged receipt and said they will be investigation.

To this day I haven't heard anything from them instead i just found out (trying to buy a property) that I am listed at credit bureau. I have tried contacting Vodacom but I am always sent from pillar to post.

I need help on which direction to take from here as this has damaged my credit profile in a way i cannot imagine.