Does anyone know where we can find our cashback on our multiply btc and betting wagers, because I don't find it anywhere?

There is an announcement above saying the feature is available yet.
I think you can just see it if you're a FUN token holder if so that will be available by now as per the announcement. Just an observation, you can click "Premium" and then hit BUY / SELL button and then you can see in the buy tab that there's a "1% cashback" I think that's automatic if you have Premium Membership, correct me if I'm wrong here.
No what you are talking about is not a button or a link it's just some text to inform the buyer about the percentage of cashback he will get. I've looked everywhere and I haven't found anything that could represents or includes the cashback I am supposed to have won today.

now, i realised the FUN token tab is changed to PREMIUM. and they already add the deposit/withdraw. though withdraw is not yet activated. but you can already use the buy/sell within the platform. nice!
am still in negative profit here but i noticed the (-) is getting smaller. so sooner or later, this will be positive as soon as players are getting more FUN tokens for its benefits.