Hi, Yes I’m positive we allow US signups- we have many participants already. I saw your request didn’t include an email address, hence the error page. Please try again, entering all information and you should be fine.
Again, US-facing programs only will have a hard time clearing our fraud team, but as an individual marketing EU programs as well, there is no issue. The more affiliate demand there is, the more programs will begin paying onto Intercash cards (and you can get paid by various participating sites to the one card you have requested).