scam or not , i wouldnt still invest my money on their platform because they are not really familliar to me and i believe all of us ( even the op of this thread ) are not also familliar with c-cex.com .
Maybe for you (and others) but not for the rest of us, c-cex is one of the longest running exchange and one of the used exchange way back until they become like this and scamming its users, so no one would recommend of using them these days.
Recently, many users of this exchange report a scam incidents and i think that is the start of trust decline on the part of c-cex. I used to trade on this site before when I was new in this market and luckily i dont experience any bad things in this exchange. The trading volume on this exchange is still good, so i think they are trying to regain the trust of the investors/traders, lets see if they will continue to survive in this growing competition of the cryptoexchanges.