Winna representative has said the same thing on the two scam accusations post (
case 1,
case 2). I just checked the odds provider of Winna sportsbook and found that it is Betby. Other sportsbook with Betby provider usually does the same thing to value bettors.
The refund of the deposits is given when the users get caught on their first withdrawal attempt, or if the user's overall PnL statistic is negative. Otherwise, betting sites confiscate the final deposit as their anti-fraud system costs if the users in profit for their past withdrawals. I guess both of those users are overall in profit at Winna.com.
Make sense. So this actually varies from case to case. I have seen two or three cases of Xyes.com where the player and our beloved friend Rating Place were too active. I am mentioning Rating Place because he was trolling holydarkness in a few threads where holydarkness was trying to solve the case. According to Xyes and holydarkness, Xyes paid those users to show goodwill even though they flagged those players for value betting and arbitrage betting. They said that they paid those players to show goodwill, but judging from their thread, it seems the casino was forced to pay those players.