I have a client that says her SS form is incorrect.  She says she recieved $15100.00  .  The SSA 1099 says she recived 11455.00. The difference is $3545.00 which is the amount they said she owed  because she received too much in benefits.  She wrote a check and stopped payment on  the check. She never paid the $3545.00.  What is the correct way to handle this issue?