Yes, when I reported them to the licensing authority, they refunded only my initial deposit and canceled my winnings. As shown in the screenshots, one of the bets I placed was automatically voided by the platform itself after the odds dropped — meaning I didn’t gain any unfair advantage in any way.
Now the question is, why would you place same bets on different platforms? Were you limited in some platforms? Or did you placed the bets on different outcomes? In both cases, you are guilty of violating the casino rules. If you placed the bet on different outcomes, this is called arbitrage betting. If you placed the bet on same outcome, why did you do that? If you did that because of the casino limited you and your max bet was reduced, you violated another rules here. I assume all three sportsbook use Betby and they flagged you for violating your rules, which is why the initial deposit amount was returned and your account was closed.