999DICE.COM is a SCAM, and won't let you withdraw your funds sometimes.
Also there is not a tab with your withdrawals,
and you are not able to write in chat since there are just programmed scripts, it's not a real chat
Try opening the page with 2 browsers different and try typing, you won't see yourself typing in the chat, simple as that.
That means there is no admin or staff.
I made a bet lost, deposited again and won, withdrawn but after 10 hours still nothing.
Used the contact form and saved the username and password in a notepad.
Now using the same password says I can't login.
I tried another account I made yesterday on the same site, again password not working.
Simple as that, Just don't deposit on that bullshit website made by a russian scammer.
First of all, you should have done your own research before gambling on a site and trusting them with your funds. 999dice is most likely a rigged casino and remains to be a rigged casino since they don't show you your client and server seeds every single roll, unless you request for it.
I'm not sure whether the chat is completely bots though. I do recall before i realised that they were a scam, there were always regulars to the chat that i personally chatted to basically every single day and even entrusted them with BTC which some people returned. Not sure if this has changed of course.
Withdrawals are supposed to be instant, your only hope is to really just contact support - nothing more you can do. Perhaps you were on a phishing site, even?