Household Finance Corp. Education Loan Carol Stream, Illinois

March of 2006 I borrowed money from Household Finance for my daughter to get a school loan.  It was a five years loan.  Finally, the loan is paid off.  Two years later which will be April 29, 2013 I get a letter from Ferry & Nicholas, Inc. saying I owed $6,215.27. I have every cancelled checks that were sent to Household Finance Corp.  If they do not get this account corrected I will file a lawsuit against Ferry & Nicholas and Beneficial (Household Finance).  I have proof that this account is paid off and also I can get a printout from my financial institution.  They did cashed those checks, because I saw where they cashed them online.  Household and Beneficial are the same corporation, and what they are doing, they are ripping people off.