they sound very convincing and threatning on the phone, but will give up no info on what the call is really about other that they are out to get you...then at the end of the call, they say that you can settle with them out of court for a few thousand dollars...yeah right...scammers!
this scam is running through a few different numbers. Do not give these people any information!! if you let them know you are on to them they stop calling.