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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.
But everything is ok from my point of view, no need to worry 
You are of course right with the basic statement, you have to win twice to actually receive money.