you should clarify post about satoshidice because right now it is too vague to give a proper answer.
anyway, the gambling site has had a fair amount of scam accusation about them in the past in this forum. so if the OP's post turned out him not being able
to withdraw from the website I won't be surprised.
For the last 2 years, sent .4 BTC to satoshi dice betting address before they disabled it. They never returned it. I've tried contacting them many time. I will probably never see this money again.
If the site that you are mentioning already closed then there's no chance to recover those btc that you send to their wallets
the last bet made in their website was an hour ago so it is clear that the website is still running but their representative in the forum has been inactive for six months.
also according to this thread(
What happened to SatoshiDice), the website seems to have great service back 2013/2014 but was sold and everything went down after that.