We had what seemed a genuine interest in a booking at our studio. We offered dates, but he didn't phone us, only email us. He did provide a phone number but we preferred him to call us. He then sent an obviously faked international money order in euros as a "downpayment" which I never asked for, then asked me to send the rest to the "artistes" (con artistes!) to an address in Nigeria for their air fares!! Added to which, he thought we were in Germany, not the UK! Needless to say, as soon as we smelled a rat, we stopped emailing him and reported him to the police and to his ISP. Haven't heard from him for a while now, thank goodness.
Problem with these is because you're selling something, you're genuinely pleased that someone is interested in buying it! I have heard of other studios being targetted this way.
The IMO had the name "Damien Thorn" on it too, which I was to discover was the name of the kid in the Omen!! I've kept it for posterity.