Glad to hear your issue got resolved and you finally received your winnings.
I know how frustrating it can be when you're in such a situation, especially when you know you didn’t do anything wrong and didn’t breach any of the casino's terms. But the fact is, you won’t find an online casino that doesn’t have similar complaints against it. The difference is that legitimate casinos will allow you to withdraw your rightful winnings once they finish their investigations, even if it takes a long time.
So, kudos to the Shuffle team, too, for doing the right thing here. Although, it could have been better if they had kept the player informed about the process along the way.