I think your chances of getting your funds back are very small or I could say impossible, it's not that Roobet has no intention of returning your funds but the security system they have to maintain and this is a lesson for anyone to be very careful when sending funds, even if that happens. in exchange they will do the same, maybe you can try again to apply for a refund but if they keep saying no then you won't get it
I wrote to them several times, but they just copy-paste the same text - When the BEP-20 network is touched, they cannot help because the entire system is automated.
That's why I'm writing here because maybe someone from here works at RooBet from the technical side and can help..
but looks like you missed or ignore the first reply in your post says this
If someone helps to solve this problem, I will transfer 50% of the total amount for the help.
They are the only ones who could really help since they do have the private key of that ETH wallet recieving address.
Basing up on this article.
https://bscscan.freshdesk.com/support/solutions/articles/67000229445-how-to-recover-erc20-tokens-sent-to-ethereum-address-as-bep20-If you have accidentally withdrawn ERC20 tokens as BEP20 token to your Ethereum wallet address, you will be able to recover them by connecting the receiving wallet to BNB Smart Chain (BSC) and send the BEP20 tokens back into Binance then withdraw them as ERC20.Just an example. So this means only Roobet could help out on this regard.
because in this case Roobet or any in their part cannot Help you recover your missed handled amount .
and the receiving wallet is what you need to contact for at least small chance or returns.