That is where they belong with how they are running their affiliate program.
Have they not changed their T&C retroactively as well? That should be a YES.
I have the impression that their stats often do not add up. When pointing that out to the affiliate managers, they usually say that they had some problem with the stats and that they have been corrected - always to a lower commission than initially. You don't have to be a tin foil hat to suspect...
We have seen 100% transparent casinos + affiliate programs already. Funfair was 100% transparent with affiliate payments in real-time. They had to close though because of the high gas prices on Ethereum.
Could you please post a link to your terms and conditions for the affiliate program? The links on spinwise.com do not lead anywhere. Maybe you could update the links as well so that they are easy to find?
Greedy scammers!
It is not that the margins are getting smaller and smaller. It is your shareholders that want to see infinite growth (which is impossible). So you are milking your affiliates and hoping that it will soon be forgotten. It will not.
Throw them to the rogue house!