It is a good old fashioned chain letter. The person who starts the chain may make quite a few pounds, as may the next few people, but do the maths. You send the letter to 200 people, they each send it to 200 people. 200 times 200 is 40,000. Two more moves and the total is 1,600,000,000, and after the next (fifth) move your name reaches the top of the list, but by now the letter is being sent to 320,000,000,000 people. Yes 320 BILLION which is many times the total world population. Somewhere before this the whole chain collapses. Even if you only had to make two copies the number of recipients reaches over one million after only 20 generations of the letter, and doubles with each successive generation reaching over a billion copies in only 30 moves and 10 billion in 37 moves. All chain letters grow exponentially, and collapse before very long. Save your money. Save your stamps.