Casinos are all about $$$ - lots of it! That's pretty much the reason you don't get a real profit making, turn-key open source casino solution. So I don't think it is realistic to assume that whitelabelcasino (or any other commercial entity in this line of business) would 'sponsor' CSC and give up on their profits. Keep in mind that for them it actually does costs time and money to host and support any casino through them and it might be pretty expensive to incorporate cryptos to their payment system. So it might well be that I never hear back from them - but I'm still hopeful!

But think about it: if it doesn't cost much upfront (some commercial operators offer their intro packages without any upfront costs), it still seems a good way to get started even if we have to give away half or more of the casino profit down the road. Still better than no casino, no profit and no CasinoCoin, because people might loose faith in it over time. Some of us actually use a similar model: in daily life: we might have a mortgage on a house or a lease on the car, or we might use a credit card etc. Same model: low or no upfront cost, but you over-pay over time. Yet we still love to by stuff on credit

Of course, even if we would focus our efforts towards an initial launch through a commercial provider, we still have the option to make our own, private casino solution later. For me it seems a bit unlikely to really succeed against products that have seven or eight figures of investments in their software packages.

One last remark: We should also keep in mind that  in may countries gambling for profit requires a gambling license. It probably doesn't matter where you live. As soon as you try to pull money out of it onto your bank account you might get bitten. This would be another reason to start with a commercial provider as many of them deal with that tricky aspect.