I have no idea what you're talking about.
We never canceled a winning bet, and we never failed to pay a winning bet.
We asked you on multiple occasions to post the bet ID in question and offered to compensate you if there was any wrongdoing on our end.
Unfortunately we haven't heard back from you.
If such a bet really exists as you claim, why don't you post the bet ID ?
All 'Direct' bets are recorded in the Bitcoin block chain for full transparency.