There’s no way this is a chargeback issue. It’s more likely they lost a processor who kept a big chunk of change.
Whatever has happened it’s criminal that affiliates are wearing the cost in this fashion. If you run your business in such a way where you lose some cash, then you take a hit and learn from your mistake. You don’t penalize your marketing partners for something that is out of their control. Would they ask for a refund from a magazine ad if players sourced from that campaign deposited using a lost processor? Of course not!
The way some casinos process chargebacks is ludricrous at the best of times.
For example a player deposits $100 and loses it. The affiliate earns $25. Then a month later the player charges back and $100 is taken from our affiliate earn – why do we lose $75 earned off of other players! I know not all casinos manage chargebacks like this, but many do and it is ridiculous.
This Casino Coins situation is just an added dimension of screwing affiliates. And the only way to do anything about it is not to promote them anymore so other programs know not to try the same thing.