The pitch is simple. You receive a call from a foreign lottery announcing that you have won money, a car and other prizes. The caller tells you that you entered a contest: a form you submitted in the mail, or on the internet, or while shopping. You have won, but you must pay taxes, insurance and other up-front fees in order to get your prize into the United States. Despite several payments totaling thousands of dollars, you never receive the prizes promised to you.