Quite sad if they didn't even send out emails about the closure. I just hope all those people who missed out the announcement and the deadline eventually manage to withdraw their funds in the fore seeable future for the sake of BETBTC's sanity and the possible future owners of the casino
You can also try your luck through this telegram profile -
https://t.me/betbtccoThe team should have sent emails that they are closing the site. Those who didn't know about betbtc closing then they might not be able to withdraw their funds but I am sure that those who always gamble on betbtc will be able to know. Closing sites will always disable almost all except withdrawal before finally shutting it down. It is sadto see anothe platform closing after many years of running the site.