I'm EU citizen and I need to fill in a request before going to US. They can either approve or reject it. If it's rejected, I may go to embassy for another try.

I'm EU citizen and I need to fill in a request before going to US. They can either approve or reject it. If it's rejected, I may go to embassy for another try. Both of these are paid. Not refunded if negative. Defacto, it's far from "no visa required".