Navient Solutions, Inc. Student Loan Complaint

Navient Solutions, Inc. Student loan department,

Non-federal student loan Dealing with my lender or servicer Keep getting calls about my loan Ohio

My mother 's social security number was used by my ex sister inlaw for a cosigner on her student loan back in 2006, electronically.. My mother is on social security, - - - and in very bad health. She has been in and out of the hospital and in a - home -. My mother is being harassed daily by calls and letters. Demanding payment, which she can not make, because my ex sister in law can not be found and has been divorced from my brother going on 10 years. My mother never signed anything and Sallie Mae will not send her anything with her signature on it. She was asked for her social security number when she was recovering at my brothers - This harrassment has increased in the last 6 months and effecting my mother 's health in a negative way. This is leading to her having another - - or worse. I need help, because Sallie Mae does not want to cooperate with her or myself. thank you for your time.