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.
This case has been written on Roobet TOS, so I don't expect Roobet will send back the money. This fault is on the gambler and before using this casino, anyone must agree and understand about the TOS first. I wouldn't blame Roobet since almost of any centralized party will also have same rule, even if you mistakenly send your coin to your friend, there's no guarantee your friend will send back your coin.
You may deposit funds by sending Ethereum or Bitcoin, or Litecoin to the wallet address shown in your profile. Please make sure to send Ethereum only to the Ethereum address and Bitcoin to the Bitcoin address, and Litecoin to the Litecoin address;
company cannot credit you any Roobidos if you send your funds to the wrong address.https://roobet.com/termsandconditions