I found this:
"this just got pasted in c-cex chat
Our service was under the most severe attack ever. Due to most specialists' holidays we've decided for a reliable safety of users' funds to suspend site's work until the first Monday of 2015 (5th of January). Everybody will return to standard work then and we'll continue our work in a usual way. Please be calm. Thank you for understanding. To keep contact with our users and to separate priority mail from spam, we've developed mail accepting via BTC payments. For guaranteed processing of your message you'll have to pay small amount through an interface below. We've successfully deflected serious threats and attacks on our service earlier and we're sure that together we can do this even in a situation this hard."
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