Many states also have government run consumer protection offices as part of the state attorney general offices. Those state laws may afford further protection to you.

Illinois - http://www.illinoisattorneygeneral.gov/consumers/debtcollection.html

Wisconsin - https://www.wdfi.org/wca/business_guidance/creditors/debt_collection/

Michigan - http://www.michigan.gov/ag/0,4534,7-164-17337_20942-238041--,00.html

Indiana - http://www.in.gov/dfi/2588.htm

Contact Geier Law for more information about the laws in your state.