This is Sallie Mae Department of Education calling about a student loan

Its Sallie Mae, Inc.
I have sent some serious debt validation letters and one that alluded to suing them for FDCPA violations to the Wilkes-Barre, PA center. From my research this seems to be the collections side of Sallie Mae. I assume they sold my note to themselves (another Dept.). Still no validation of my debt... They are not my original creditor and I never agreed to pay anyone but the U.S. Dept. of Ed. They refuse to show me any paperwork proving this debt was negotiated as prescribe by law in UCC Article 3 under negotiable instruments.

we are refinancing those loans
they will be paid off within 30 days

 They continually call me and leave a message that I need to call them.  I tried once to call them and got put on hold for a few  minutes and hung up.  My problem is that I have never borrowed any money from them and have no debt.  I think they are calling everyone with my name and harassing them until they find the right person.  Sure would like to get it stopped.

7652833406 this is another sallie mae number that is a scam DO NOT GIVE THEM ANY IMPORTANT INFO