********** upgrade

I was a victim of ***** which took place at istore Sandton in December 2018. I notified Vodacom the moment I received my statement on the 11th January 2018 that there was an upgrade done on one of my contracts without my consent , that the signature used there was not mine and the ID was also incorrect. I notified Vodacom verbally and in writing and still today the matter has not been solved nor do they come back to me with a solution, instead the ***** department comes back to me with a new reference number and ask for the same documents which I sent on the 11th of January. I followed up with a consultant who assured me that they received the documents but still they still keep asking for the same documents with and keep giving me new reference numbers. The only time they call me is to tell me my account is in arrears and I respond and tell them that I will not be paying for an phones that I don't have and that no one given me feedback just the numerous reference numbers. I don't want this affecting my credit profile at all of which I've said this to them but no one takes me seriously even when I threaten to take the matter further they seem not to be bothered by it. What saddens me is that I have been a loyal client of Vodacom for many many years both on prepaid and contract and this is the kind of service I get ? I wish to part ways with them as I can no longer be a part of such and with that I have notified them in writing and they still don't care !!