prosecutor against Navient

I was reading the post on Facebook about the federal prosecutor against Navient. I am being harassed by them. They called me on the phone and told me I was in default of my loans and I am still in school and they have called more then once. I informed them that I am still in school and they said well we don’t see that and I said how you don’t and everybody body else does. I started at the the school I am at 5/2014 getting my B.S.B.A. So I reached out to the school and the forgiveness loan and everyone else is aware even the department of education. Are students loans sold off to these negligent companies? Ok, thank you that will be all. Because I have seen on my credit duplicates of the same loan amounts.