Bitcoin gambling is meant for speed and they seem to be scammish or at least slow.
If in gambling, speed would be ideal if you want to lose easily or just want to gamble fast without wasting too much time, however, if you are speeding in withdrawal processes, there is a higher chance for error, so you wouldn't want that right? At least you should know the reputation of the website has and if not, then you could've just joined their
Discord channel and ask the support there.
At least you got a reply from FortuneJack already.