Hola my friend,
I have been having quite a bit of trouble with Polo over the last couple of months. I am still waiting for access to some ETC that I transfered to them almost 5 weeks ago. I know the ETC is in my wallet on Polo as I can see it on gastracker.io. I have had a ticket standing open with Polo for at least one month and have never received anything but one automated response. I actually have quit using Polo all together at this point. I hope we all have better luck in the future as Polo carries a lot of altcoins that I would like to trade but I am in no position to just give my money away... aka have in lost in Poloniex.
Peace,
The Last Sage
I encountered problems when withdrawing NLG (Guldencoin) I just deposited 5 minutes before. Went into 'manual processing' or something similar. Was resolved in about 2-3hrs thankfully.
No more Polo for me, I can tell you.