Can beta game versions ask testers for money?
I've never been a beta-tester so I'm not completely sure, but I
don't think they can unless the game goes out onto the market and
the tester wishes to continue playing the game.
I play an MMORPG and a few of my gaming buddies were
beta-testers. I don't think they were asked to pay for anything
until the game was officially released to the public.