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If you took the time to read through the thread, you'd see that the op provided sufficient proof that linked owl.games to sandboxcasino.io - And you will clearly see that both companies are owned by Cyber Galaxy B.V. That's enough to drag owl.games into it. If they had nothing to hide they wouldn't have gone through the trouble of deleting evidence that tied all 3 companies together.
You are clearly did not read the continuous conversation where owlgames explained how it was done. owlgames is providing the software and SandboxCasino are operating their own just like the software providers works in the casino business. In casino business there are game providers who develop games, there are sports engine provider who providers data for sports and there are the casino itself who use the API/data and create their own database for customers and betting platform.