It's appears to be a promo directly associated with a licensed casino(Curaçao) named cashy. Thats why I'm confused with you calling it a scam.
I had also searched for it on CM etc to see if others were discussing it but it seems they are astroturfing it on AG(imo) and twitter. That being said I've seen nothing to indicate it's dodgy so far?
The video call stuff appears to be used for their marketing on twitter interviewing the people and posting it to show real people they paid out.