This is what many members including me didn't focus on and gave all the credit to Sportsbet.io when the truth is that they deserve partial credit for paying out the winnings smoothly while the remaining credit goes to the 3rd party that you mentioned.
These crazy wins are super rare which is why credit should be given where it's due.
Sportsbet is trying to make it look as though they made the payment, they didn't make the payment. Sportsbet states they made the payment and the picture makes it look that way too. Games Global paid the player.