You could try looking at this: http://stevegrundy.blogspot.nl/2017/06/poloniex-customer-service-how-to-get.html

I had 2 withdrawals that were stuck pending "awaiting approval" for over a week. I sent in a ticket right after when it happen but I never got a reply, until a few hours ago. My ticket has been closed and the withdrawals have been processed. I doubt Poloniex is pulling an exit scam (or trying to scam certain users). They do have a lot of support issues and fix them asap because now they are losing a lot of customers. I'll be using Bittrex until Polo solves their issues.