Did you check this OP's first line?
What does it say?

"We invite everyone in world".
When someone win a lot money they say;
"Sorry dude, we wrote that in TOS very small, you can't play with us because you're from X".

That's why those shitters are SOB and scammer garbage. They have to pay the customers winning.

Not really a sole fault from the user, since there is a verification before someone can play at betkurus, I think betkurus should block the person, the moment they see that the person is from the country that violated their TOS, but To withhold all balance is indeed in the TOS if a user violated it, so they got a point, but still betkurus is responsible as well