I dod answer them when I can and get them to put me on their no-call list and they stop calling. I haven't answered this one yet but if you don't answer they will just keep calling back
They will try to pay some items from you if you are using epay or creglist and they will send you a forge check from unknown account with extra money and then they will ask you nicely to return the extra money using through Western union. Do not believe them at all.