This is a scam. Deposit yesterday 0.1 BTC, bought for 0.05 BTC JGN coins and wanted to withdraw my other 0.05 BTC. Not working. Pending. Total SCAM!!!
I hope that it's not a scam. Also, on the dashboard it says: Alert: You must buy at least 50 JGN to be able to withdraw your remaining BTC. If not, BTC can only be withdrawn after ICO.