Hello.
Is there a proff that anyone ever roll 10000 ?

I am doing FreeBitco.in ~ 2 months and neither me or one from my 200+refs roll more then 9993

If you scroll back few pages, there are a lot of people posting their big win (which is, prize larger than the first tier) but if you're looking for the first one winning 10,000, he is
TheUltraEliteIn this case I would like to shamelessly raise my hand and proudly declare that I am the winner of the 200$ win on freebitco.in

No offense but I would suggest you to keep trying, I got my lucky roll on 16th November 2016 after 3 months - claiming about 4-5 times everyday.
I still consider myself as very very lucky to have rolled that number.