We keep receiving phone calls from these people who say they send us letters which we never receive and say we should know how much we owe, and they tell us that they are going to sue us unless we pay today.  I told my husband what to ask them, and the lady asked him if she is done running her mouth, and than I talked to her and she called me little girl.  I got really rude with them and they would not tell us their physical address so that we could come down to their office to pay this in person or get a copy of the document in person.  It's funny, they call from a Pewaukee WI phone number, but they say they are in Miami FL.  I told them that until we get a letter in the mail to our current address which we did not give, and they could send an email copy but we don't consider that one a legal copy until we get one in our hands via mail.  She finally hung up on me.  Gotta love them.