Unhappy customer

Last year round about this time, my contract was upgraded by someone I didn't know, I founded out by experiencing data issues while I had enough data, later when I call Vodacom to find out what was going on I was then told it was due to the "upgrade" I had made in Sandton mall which I was no where close to cause I'm based in KZN. At that same time I inform them that I didn't do any upgrade. I escalated the matter by going to report to police station as adviced, submitted case number, three sample of my signature and affidavit to Vodacom, they said they will investigate the matter and get back to me, till date no one has ever called me but only lawyers who informed me that my name has been handed to credit bureau by Vodacom over upgrades I never took. I'm sure if my surname was in English or Afrikaans this matter would have been resolved without dragging my name.