I've been observing the use of these codes I posted (gave out ~1.5 BTC on the site so far). Pretty much every single time all the coins are spent on the next upcoming game, and the users never even log in, they just get the automatic withdrawal for whatever they win. Some people just claim the promo coins and don't even use them.
I'd be happy to give out some free coins again if it meant some extra players, but realistically my experience after the last ~2 weeks is that people here just want free coins and don't really care about the game itself. I have a 10-20 BTC budget for this. I'll give out a few coins on Reddit. If there's genuine interest there, I'll just share the remaining budget with them. If not, I'll find some other way to spend it on promotion.
The sad part is (and I've mentioned this a bunch of times) that if someone took even 5 seconds to think about how the site works, they would quickly realise that there's much more coins to be gained by playing smart than sweeping any promo codes posted here.
I mean, there's bots posting COMPLETELY RANDOM bets, and the games are never 50-50% chance...
I've been collecting two codes from you , tried them on the game and I can say the idea is genuine where there are none other sites like BETwitter, whats makes me amazed was the actually the live calculation page from the twitter's feed, so you can actually see a live status of your bet
Problem with your codes is that you allow a withdrawal for every winning using the bonus code, you should apply a wager requirement like atleast 30x so that people could spend some time trying some games before cashing it out
Alternatively , you can try to do some better promotions in games and rounds sections apart from the bonus code, like top wager of the week will get some bonus
BTC, or etc, this could actuaclly give your sites some traffic and more user to try it out