Pay Per Click and Pay Per View

I’m looking for a site that offers me Pay Per Click and Pay Per View, and, very important, will accept to send money in Romania.
I found several ones, but I don’t know what to write on "Tax ID" field. I’ve tried to contact them, but they didn’t answer. If I live in Romania, and my site/servers are in Romania, I don’t owe money to US IRS, isn’t it?
Exemple: lists Romania as acceptable countries, has Tax ID as mandatory field.

Original post by ForumJoiner