The Poloniex's Clam client seems to be in some troubles. When I deposited the clams it took 4-6 hours to get credited few days ago.
The withdrawal today ended up with Complete: Error. And the coins were not credited back to the balance. Contacted support.
Anyway, the margin lending is really high there.
I got a problem while withdrawing from poloniex too. In the withdraw history there was a txid, but a invalid one that do not show up on explorers. A huge amount, scared the soul out of my body! They took a week to solve that. But for now, i will just send and receive small amounts from poloniex until the bullrun ends
UPDATE: I got the coins credited back. I did new withdrawal. Now I got "Complete" with txid... But the transaction doesn't appeared on the blockchain.
It happened for me, too. Open a ticket, and they will take a look at it. For me, it took almost a week for them to send my coins.
Additionally, looks like poloniex is having serious problems with the CLAM client: I saw a lot of this cases happening after the bullrun, and i have two deposits still waiting to be processed. One of them shows with 0 confirmations for more than 5 hours now, the other does not even show in history.
I would recommend another exchange, but... Well, there are none trading CLAMs, i think. Cryptopia relaunched in read-only mode some weeks ago, and are working to enable trading again, but i wold not recommend them after what happened
We are building a Bid/Ask on FreeBitcoin.com for BTC/CLAM.
Going as fast as we can, but we got two things ahead of that.