I will try again via Twitter to remind them about this case.
I's been 1 month since CEX.io recieved last docs.
2 months ago I started to send them all the needed.
Their support didn't read my questions for 2 weeks.
They now have got everything about my bulgarian residence and there's no anything else they can ask additionally.
Probably we may admit - they simply don't want to let me use my money.
Any suggetions?