Hello,  I bought a 2003 Silverado on craigslist for $3900I was sent an invoice from e-Bay Motors Payment Protection Program I Western Unioned the money to their agent: Rashid Gufurov 921 S. Main St. Las Vegas, NV 89101  The next day, I received a message via e-mail that I needed to send another$1800. for my portion of the shipping.The seller told me that she waspaying the shipping to HoustonI e-mailed them back saying that I was not going to pay another penny for anything.HAVENT HEARD BACK FROM THEM SINCE.What the heck can I do to try to recoup ANY of my $3900.???