I bet on bitgame. It is easy and smooth but I got some usdt by stacking lut tokens. But the bitgame platform did not allow them to withdraw. they Introduced the law of minimum 100 $ valid bet for withdrawal. I don't think it's fair. Because in this way people are forced to bet there. Which is an annoying thing. I think everyone there should be given his freedom. Then they will be able to get more users.
I do not think that is how staking works but that sounds like your completing a welcome bonus. How much usdt tokens your getting by the way? Are the amounts nice enough for you to risk a 100 dollar bet? If not then this is a no no if your a small gambler.
100 dollar bet can be possible only if your rich but if your already rich, will you still bother on this small amount of rewards? They better revise this rules so that gamblers will stay and maybe they can attract more users to play with them. Staking is popular right now as so as gambling but its more convenient if you can do them both in one platform. It saves time and money.