Incorrect information on your report: Student loan

When I recently checked my credit report. I noticed that I had multiple collection and closed accounts. All of these accounts, I had no knowledge of. They have been open and used without my consent. I reached out to these companies and financial institutions to get an understanding of how these accounts had been opened. As well as to let them know that I had no knowledge of them and that I had been a victim of Identity theft. These accounts are as follows : Department of Education