Mateja, I just found two possible solutions to your Stripe problem.
- This article, which is a way around: https://medium.com/@IsAlmog/hacking-strip-payments-to-use-in-any-country-886a7cafb690
- Atlas by Stripe, a service they offer so you can set up your own mini US company quickly and start accepting payments: https://stripe.com/atlas
Hope that’s helpful!