I'm not saying you did anything wrong, but a lot of times when people have issues like this it's because they did something wrong, like in the case of NEM not copying and including the proper "message" when sending the coin, or filling out all the fields properly. These mistakes can be easily avoided with a little care. They don't hold your hand in the crypto space so it's important to take every precaution.
In this case, there is no associated transaction ID, so obviously they didn't send the coins anywhere and are just sitting on them. It says I sent coins to an address "CIFG777" or something similar, and the transfer status says "COMPLETE: ERROR", without listing a transaction ID. So no, I didn't do anything wrong. And I was an original recipient of a NEMstake when it first launched through NXT, so I'm not exactly a noob here either.
Given the fact that over 100 people have commented in this very thread with similar problems leads me to believe that they are either wildly incompetent, on the verge of an exit scam or else bankruptcy. In any 3 of these scenarios, I still continue recommending people _NOT_ deposit their coins in Poloniex, and withdraw everything they _do_ have there. They are simply untrustworthy at this point.