We've been discussing it for a long time already that all our withdrawals are made according to the casino wallet refill, there is no BTC bankroll for now. So the time of your 10 BTC withdrawal for example can't be scheduled somehow. As a rule such sums are paid in parts as it happens now with our 17 btc winner.
First off, this isn't how you run a casino. I'd be willing to give it a pass if you were very explicit and upfront about this, letting all players know that if they win they won't be able to be paid immediately (or possibly ever). However, you seem to be doing the opposite:
Once all Fair games rules observed, Fun-casino guarantees instant withdrawal to its players.