he can get these from his host part of the service.
I am telling you if you are under a streamer code if he/she is a good person and generous person, you can get benefits...
yeah, most casino streamers have things like leaderboards, and other instives for people to sign up and wager under thier codes.
if you add that on top of the casino rewards, you get a higher RTP. honestly, as long as you sign up under someone who is legit, it's better than signing up directly with the casino.