********** Account on my name!!!

I have been trying to apply for vehicle finance and was declined due to having unsettled accounts from Telkom. I have never opened any account at Telkom before and went in to Telkom in Mall @ Reds where the assistant laughed at me and refused to give me the details that I asked for like the address and phone number and signature of the person who opened this account on my name. This consultant just gave me a case number. This account was opened in 2013 according to records for the amount of R8000 which I did not approve! It's affecting my credit record and approval rate in a very negative way. I have not received any feedback from Telkom at all regarding this case and when I try to phone the ***** number I get redirected and eventually cut off everytime. I need this off of my name NOW! I was a minor in 2013 therefore no legally binding contract should have been approved in the first place, especially since I did not give any permission to open this account! Customer service is poor and I do not get feedback at all! Case number:***3