I hope so. But they also should:
1. inform me about verification estimated time
2. since I haven't been informed about that time - they should answer my questions concerning this issue
It's been how many days since you message them? I knew some exchange do mke like 1-5 days depends on the exchange, but sometimes' the result is within a day.
Just like everyone said, waiting is your top priority. You could follow up them in their social media handles
https://www.facebook.com/CEX.IO and
https://twitter.com/cex_io, lastly on their support page
https://support.cex.io/en/