Just recheck again and yeah they have that term.
IMO, since they provided this information on their term & condition of their casino nothing you cant do right now since every service have their own rules and policy. I know was pitty losing 0.13 BTC but nothing cant do right now by following of their ToS since you are agree to all of them while you are decide to register.
Oh yeah about the ToS thing.
I found it's interesting ...
Take a look here
https://web.archive.org/web/20160413102638/https://coinroyale.com/tosThoughts ?
Are you referring to this term:
Inactive Accounts
We reserve the right to close any accounts that have been inactive for more than 6 months and reclaim their funds. If have set a fixed withdraw address from the account menu, we will send the funds in your account to that address. If you have filled out a contact email, we will try to contact you via email before we shut down your account.
and comparing it to the new term on the screenshot above which is a bit modified? Afaik ToS is subject to change, so any casinos has the right to change/update/modify their ToS anytime it is needed. The old term is basically similar in case of "inactive/dormant account". It is just an unfortunate accident for you because you lose the access to your email, I believe they have tried to reach you in the past by contacting your registered email.
Imho you may get different result if you open a thread like this one back in 2016 after you get not reply from Victor.