Mae requested his death cert in order to cancel payments. He passed 4/16/00. Recently, My mother found the letter stating we would not be responsible due to his death. Sallie Mae began calling me in 2003 for repayment. It went on my credit report as delinquent. They are unfair and deceptive, hounding me after my father's passing was so sudden. I want reimbursement for interest and all money I have paid since his death. How do I go about this?