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I understand very well what a free bet is, but obviously you didn't understand what I wrote the post about. The bottom line is, to get real money as a prize, you need to win at least twice: first, win the free bet itself, and then make the correct prediction.
Yes, I already understood that. However, your post sounded more like a complaint to me, so I tried to explain the background again, as I'm sure it's not clear to everyone who reads your post or is looking for a more detailed explanation.
You are of course right with the basic statement, you have to win twice to actually receive money.