Oh, the
decentralized prediction market strikes again by freezing funds!

And you have to contact support on a "decentralized" platform... sweet irony!
It's funny how the word "decentralisation" is taken so lightly by many of these so called decentralised platforms. Somehow, they use it to promote their platforms, but I don't see how a platform can truly be decentralised when it can freeze your withdrawals and ask you to wait for a review. At that point, it starts to feel like an irony. If someone else still has the final control over your funds, then how much decentralisation are we really talking about here!!
OP, like all of the other deposit/withdrawal/account issues concerning coins/money withheld by a crypto service, you should be patient and wait for the service to review the problem/issue with your account. Plus you should also know that Ethereum-based wallets are accounts-based models, not UTXO-based models to track ownership.
I really think this is going to be enough time for them to come up with more reasons not to allow his withdrawal ls.30 days is too long and I'm sure no one would be happy to have their funds stuck on a platform for that long. If they are being honest, they should st lest provide op with some reason why his withdrawal is under review. If just doesn't adds up why. But this is normal for gambling platforms..