I just tried the telegram dice game, it seems to be working good, I got 1000 satoshi for free to play with, how much balance do you need to have to be able to withdraw?
I've also tried the bit and it looks like you receive 10.000 satoshi free, not 1000. Minimum withdrawal is 0.01btc and I guess only when you reach that amount you can add a withdraw address to your account. Also it says that a withdrawal is usually sent within 2 hours. All this information you can find by clicking More and then FAQ.
I think the minimum withdrawal is way to high especially because this is a brand new dice game and its also running on telegram. Minimum deposit of 0.001btc is fine but you need to make minimum withdrawal lower something like 0.002btc or so.
If the minimum deposit is 0.001btc then minimum withdraw should be of same amount. It does not make sense to put such a high withdrawal limit of 0.01BTC for something which is very new. They may increase the withdrawal limit when their dice application on telegram become more trustable and popular.