Imagine what happens if a bank does this to one of its clients...
I know right, but unfortunately poloniex and other exchanges just can't give a single damn apparently.
My experience recently has been terrible, but eventually got my withdrawal through. My withdrawal was stuck at awaiting approval for quite some time, before it automatically cancelled itself and refunded the withdrawal back to my account. Then i created a new withdrawal and messaged support, got a response within 2 days and every withdrawal after that is fine.
For anyone interested to know, from my personal experience if you don't have 2fa enabled and you're logging in from a different country, you'll most likely have issues with withdrawal. So don't even bother to withdraw if you are a) unverified b) overseas and c) don't have 2fa on. You'll have your withdrawal stuck. Wait until you get back to your home country before withdrawing if you're travelling overseas as well.