“Instant withdrawal” may mean fast approval, not money in your account; check...

https://varimail.com/articles/ethereum-casino-cashouts-why-do-some-withdrawals-still-take-hours/

“Instant withdrawal” may mean fast approval, not money in your account; check both times and payment-method delays. “No KYC” may still involve later checks. Bonus wagering rules and withdrawal limits can also delay or cap a cashout.