Blockchain transaction goes missing when searched from a few sites
The transaction still shows on blockchain.info:
https://blockchain.info/tx/fd82fb9711afc48623fa13fa3963121f88160afe56fc968feaf02e5f73e7b764

You can never be sure a transaction is completely dropped because every node maintains its own mempool with potentially different rules for dropping transactions. And you never know, it may be confirmed any time despite the fee. cex.io who sent it is the only ones (other than miners) who can do anything about it anyway, so perhaps contact them, but likely you will just have to wait.

See also: Why is my transaction not getting confirmed and what can I do about it?