We kindly request you to check your junk/spam box. The emails might have landed there instead of your inbox.
Also, there might be an issue with your mailing server.
It is recommended to add "@cex.io" to your email safe list. Also, please check if any filters are set up on your account that mark emails from CEX.IO as read and send them to a separate folder.
If the issue is still not resolved you can always send a ticket to the support team via email@example.com for us to probe deeper into this matter and get it resolved. Make sure you mention that you have already done the above mentioned actions to speed up the investigation process.