This refund phase looks awfully more and more like an attempt to get many people's credential instead of a real attempt to refund people.
Certainly, data collection via e-mail is quite non-transparent. I won't be surprised if some anonymous people start appearing, confirming how they got a refund from Betnomi. But the ultimate motive for everything that comes from there is still unclear. I assume that Betnomi will no longer work as a gambling site, and the only thing that seems likely to me is that Sorsis wants to have some positive feedback, because "CEO of Betnomi" is mentioned in his biography.