If you win this $30 contest they will take $5 commission which renders you unable to collect your winnings because they allow no withdrawals under $30. In order to collect any money you must win at least 2 contests apparently.
WARNING Freelancer.com is engaging in contest fraud. They are not disbursing winnings even in guaranteed contests. YOU MAY NOT BE PAID. If you win a $30 contest they will take $5 and then tell you you cannot withdraw less than $30. I won a guaranteed contest they are refusing to pay me.