Karl is a fair, honest man & Bitcasino.io do not scam people. With all due respect to the OP, I understand it’s significant money to you but Bitcasino.io are a huge operation & 1.6BTC is nothing to them.
I have played and trust bitcasino to be fair but waiting 20 days without an update makes me feel like 1.6 BTC are more important to bitcasino then it is to the players.