I recommend you CoinRoyale, Fortunejack and Bitstarz. Don't use the site you mentioned in OP. There are better sites here as I said.
You won't see any problems with these sites, even if you they solve it very fast. Instant withdrawals and good bonuses are extra good things.
Yeah bitstar are quite awesome dice site...
Sorry if this seems a dumb question, but where is the dice game on Bitstarz? I checked every page and found lots of slots together with roulette, BJ etc but I don't seem to find dice anywhere...