Complaint Review: National Bureau

 I received a letter a few weeks ago saying that I was a million dollar winner and all I had to do was send $12 back as a processing fee. So I sent a money order. A few days later, I received another one saying that I was a prize winner of over 2 million dollars with a check that was printed out to me and all I had to do was send $14.98 in order to get the money. Which again I sent them a money order. I got another one a few days later with a check saying that I had now then in a sweepstakes for 3 million dollars with a check written out to me but I had to send them $9. I stop sending them money. And I get about 4 or 5 of them a day. Warning me that if I don't pay the money I'm not going to be awarded the prize money. And at the bottom it claims that I just need to send them $19 now. This is one I knew it was a scam. They look very believable and they're signed by Michael Washington. But now there's no way to contact them to tell them to stop sending me these. I almost feel like they are harassing me