This was the answer from C-Cex Support:
2016-07-28 18:39:35 kellewer
Hi, im making a deposit and my wallet says that is not a valid address. Attached print.How can i solve this?
Thanks, kellewer. 2016-07-28 19:40:42 C-CEX support
We do not take part in ASDC swap and we are not going to use new wallet version. Our wallet is version "version":1000000 and it's using big "A" in the beginning of addresses. You can send new ADCN to old wallet address. More info here:
https://bitcointalk.org/index.php?topic=1562464https://twitter.com/CryptoCurrEncyX/status/757650031377784834 Any market where i can exchange my new coins?
EDIT, now is Disabled for SWAP!!!!!!!!!!!!