By the seems, I might be the only one so far seeing as people have played the game, but I'll make this post for anyone who comes along who might get the same issue. I was attempting to buy the game, but after putting in my details and selecting 'Pay', I receive this error:
"Stripe doesn't currently support application fees for platforms in US with connected accounts in MX."
I don't live in Mexico, I live in the UK, so I have no idea what it is talking about, and I have no VPN so it couldn't be mistaking my location either.
I looked it up, and apparently it can be affected by the developer's Stripe account itself, and I have no idea how this works in general so correct me if I'm wrong, but if that is the case here, I think the Card Payment option doesn't work currently.
EDIT: I also just attempted to purchase Nano Nova as well, to the same error message.