First of all, you won't get any bonus with XCR. 1 XCR will always count as 1300 satoshi without any bonus. Additionally, I personally contacted Bter and Poloniex a few days ago and asked them to take a look at Crypti, i.e. the XCR withdrawal isn't working correctly. Please note that Bter is sitting somewhere in China and Poloniex is a cabin in the woods of the UK afaik. I can only do the same as you, contact them and hope for the best.

The ICO is still running for over 3 weeks. I'm sure in that time frame Poloniex at least will work again.

Thanks for the reply.
As for the bonus, I think you misunderstood what I meant. I know that XCR doesn't get a bonus, but if it's clogged up forever on an exchange, I'd pay in btc to get the bonus... so timing there does matter.
But like magic, a short time after I made this post, my Polo coin went from pending to sent. So I guess it's just unusually sluggish (sending btc was like a speed demon in comparison). So at least Polo does seem to work, albeit a bit slow.
Not sure about Bter, I got stuck there, another user here PMed me about it, and he was stuck there too the other day.... guess safest route is to avoid Bter if you can.
due to low volume on bter i think they making too less money having a big focus on security. i would recommend to slowly transfer positions out of bter.