Your withdrawable balance is not enough. You need to play roulette or you need to win in other games.
Roulette: amount of your bet = wager
Crash: profit of your win bet = wager
Dice: profit of your win bet = wager
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You need to make the rules clear, they're clearly not defined in the game, doesn't matter I've lost 5$ trying to wager in dice, you need to work on a lot of things if you're going to proceed with this website of yours. it's clearly not up to the standard of other dice sites or casinos and unclear rules are annoying as hell.
Sorry to hear that. As in the FAQ, the rules for withdrawal are clearly conveyed.