I spent an afternoon trying to get verified. They have the most odious process. I emailed their tech support. I must say as crazy as their verification is, their support team makes up for that. They got back to me right away and we chatted through email until I got myself verified. It took many selfies because I couldn't get a picture just right with my license, my signature and my face.
Shoot them an email, you'll be glad you did.
RE: Poloniex verification