A young man approached my 19 year old daughter and intimidated her into writing a check for $510. She was told it would help him win a trip and she could cancel the transaction but that he would still get credit towards the trip. The phone number to cancel only had an answering machine. He instructed her to send back her original paperwork with "Cancel". Needless to say, they cashed her check. She received nothing. Her bank can't help her because it was a check and her signature was not forged. Police don't care. Any ideas how to stop these people?