Lovely Broken Thing payment problem

[Random Steve]

I can't find any help page, and i posted this in another thread without an answer yet, so here i go again:
When i want to pay for the download, when i click continue after entering all my billing info for my visa card, it just erases the (correctly entered) number and security number, without showing an error message OR the download. What's wrong here or can i buy this from somebody else? I can pay trough paypal.

thanx