Credit Karma, Inc. Credit Reporting Complaint

Credit Karma, Inc. Credit reporting department,

Incorrect information on credit report Information is not mine Massachusetts

Quite a few year 's ago I had helped out a friend and put her cell phone in my name, which was a huge mistake. I found out a few year 's ago when I went to go purchase a cell phone of my own that I could not purchase it because someone had been using my information. I knew it was not me because I had no cell phone at this point. I now I see on my credit report information of an address that is not mine and I am terrified that someone is using my information.PLEASE help.