Old mutual *****

I had 2 bank loans, 1 was supposed to have been paid up the end month of May, the other at the end of September. At the end of April month I noticed the automatic debit was not done on both, I had to check what happened and I immediately noticed both the accounts was settled, which raised an alarm to me. I then logged on to my trans union account I noticed there is a new account with a huge debt of about R120 000 that I didn’t know about, when I checked the account was opened on the 24th of April 2019, with a tracking code OMF I then googled the code and found it matching with old mutual. On the 2nd of May 2019 I went to old mutual Bisho EC where I have recently relocated to from Cape Town to report the matter. And I got there, I indeed found out I am owing old mutual the money I never took or borrowed. I was then told the money was taken from verineeging old mutual by someone staying in shoshanguve where I have never been. They even spoke to the branch and notified them of what had happened and I was also show a picture of the person who apparently personified me. And I was told then that they will sort out the problem after I gave them all the documents they wanted BUT UP TO TODAY NOTHING HAS BEEN DONE ALL THEY DO THEY ARE DEBITING R4550 from me. I have been trying to solve the problem ever since. Any suggestions what I can do