You need to send them a certified, return receipt"not me" letter (think of it as the best $6.47 you ever invested). Also send it first class mail in case no one will sign for it. Make a notation of that fact at the bottom of the letter. You also need to report them to the proper agencies to which I have provided links to. Then you need to go out and get a consumer lawyer to sue them on a contingency basis (no money out of your pocket) and let them pay you for the harassment. If everyone did these three things, these crooks would be bankrupt and we would all be the richer for it. Use these web sites to find an attorney in your state that will probably take the case on a contingency basis (no money out of your pocket up front): http://www.consumeradvocates.org/
http://www.consumeradvocates.org/find-an-atto ... tates_value=All
Everything else that you need to know including where to report them is here: http://800notes.com/Phone.aspx/1-312-488-1575#p1080613895984762414