First of all that man already accepted his inital balance before he claim bonus.
According to him, the receipt of 2 BTC did not resolve his case:
I would like to share with you a part of my unfull refund.
The case is half resolved.
I can say may be at that time, duckdice not yet pay he full of 2 btc yet. But after that, I think this is already fix
The second thing, that winning profit from your calculation, it is after he claimed the bonus, so if he cancelled the bonus no matter how much profit you got there, it will not be counted. This is pretty common thing on gambling
I personally can not see based on which laws winnings are invalid if you received a bonus on top of your deposit? According to this "logic", losses must be also invalid then.
However, this is not the point here, because the bonus canceling process is juridical not valid, as Ozafejw782 was animated to click the |Cancel Bonus| button based on the criminal offense of false representation.
Hence, he has the right to complete the wagering requirement and thereafter his expected balance is
8.76 BTC.
This is so ridiculous, he was the one who take this bonus yet to cancel it too. If I understand well the terms, no matter how much profit he get as long as he still not complete the wagering, I do not think it will be called as profit. Although he already make it half way or even 90% completed as long as it never hit 100% wagering, I can say you still do not get those profit. Every site will have this conditions as well