MTN IS HARASSING ME

An identity ***** was done in my name for a phone contract a year ago with MTN. Was made aware of this by a debt company. I supp**** the debt company and MTN with police affidavit to prove I was a victim of ID *****. Now theres a new company harassing me for the same case. I believe now my credit score is compromised despite the efford responding to MTN claims. CAN MTN PLEASE SORT OUT THIS MESS.