Hearthstone for fans of Heroes.

I can list the details for a Sberbank card or a phone number; it will take about a minute.

I already read a couple of posts above. It seems you weren't collecting contributions from the participants, though... that's a real hassle. Some people don't have a Sberbank card, others prefer to use PS, and some will figure it out later... in short, it's a hassle for the organizer first and foremost.