You are welcome. I did a bit of research too, and I have this:
"What seems to be happening here is a misunderstanding caused by very confusing terminology.
The so-called "FUT coins" are not real cryptocurrencies or blockchain tokens. They are not tradeable assets on Polygon, they do not have a public smart contract, and they cannot be freely bought, sold, or transferred between users in the way real crypto tokens can. In reality, they appear to be internal casino credits or points that exist only within the casino’s own system.
The reference to MetaMask and the Polygon blockchain is misleading. If these were real tokens, they would be publicly visible on the blockchain, listed on explorers, and transferable between independent wallets. None of that seems to apply here. Using blockchain-related terminology in this context looks more like marketing language than an actual technical implementation.
The name "FUT coins" is especially problematic, as it strongly suggests a connection to FIFA Ultimate Team coins, which are known and tradable within a completely different ecosystem. This similarity is likely what caused the confusion in the first place.
Any "transfer" between platforms (for example, from Mailina to Spinanga) is therefore most likely an internal operation or a promotional mechanism, not a real wallet-to-wallet blockchain transaction. Other users cannot freely send or receive these coins using a wallet address or code in the way they would with genuine crypto assets.
In short, these coins are not real tokens, cannot be purchased externally, and cannot be independently stored or managed in MetaMask. They exist only inside the casino environment, and the blockchain references should not be taken literally."
If the information is accurate, I find it very confusing. Thank you for pointing this out.