Honestly $25k dollar is a whole lot of money for me to forget about just like that, every casino site has their rules. The system has always been that if I win no matter how big the amount is I will definitely get my money and no questions asked because I have the right to my money. I won't go away with my chips and I'm certainly not giving it to anyone to cash out, I will contact a lawyer because refusing to give me my money is a breach of contract and there should be a penalty for that. I will take them to court for breach of contract and not playing by the rules of the betting site. And every gambler should take this situation as a lesson to always check the reputation of the betting site they are about to patronize.
People are even fighting for $20 and how much more if it's about $25k that's been stuck in them and they're refusing to withdraw that.
Making a noise nowadays is easier than before because everyone has got a platform. And there are organizations ready to help gamblers that have stuck withdrawals like that.
It makes them easier to reach the actual management and to talk about it. But if it's you only alone, you'll definitely have to find a way out of it through lawsuit.
That's why it seems a daily story in some casinos in the USA where the casino cheats their customers and refusing to withdraw. In the court, most of the legitimate cases have allowed the gamblers to win it based on judgement.