Something reminds me C-CEX recent issues (as they say) the Cryptsy, when they seized my withdrawals for days. Maybe a bit of conspiracy, but I smell manipulation with our coins in favour of their profits. Cryptsy did it on daily basis.

Too fishy that they could not get to work wallet for 3 days on their servers from a good source code.

Bittrex had XVC wallet maintenance only for some hours yesterday.