If you're from Romania where 888 had a migration(or another country with similar circumstances), to make an withdraw you actually need to make a "first deposit"... but tbh it's really worth it as this usually give lots of extra money...
I'm playing on 888 for like 15 years and I've never had any issues with deposits/ withdrawals, still, when I opened my account I sent the documents to verify it and every time I change my ID/ card/ bank account/ address- I don't wait for them to ask for this documents and I send them to always keep my account updated(since I've started playing online, I did this to all the sites I've played and I never had any issues with withdrawals and most of my accounts have way less deposits than withdrawals...)
* PS. the best/ fastest 888 support is on Reddit -
https://www.reddit.com/r/888pokerofficial/