I have bitcoin in bitbox exchange but it was fake. Can't able to send or withdraw from it. Dont use that
Are you talking about bitbox.me?
What actually happened when you tried to use them? How were you scammed, and how much were you scammed? Did you contact support already? Have they responded to you?
You really need to provide more details for anyone to help you out here. Some screenshots of your situation would be nice.
Apparently they are legitimate. I'm not ruling out the possibility of an issue on their side still, though. But you could have definitely been using a phishing site all along as well, as Omega said. Check the URL you have been accessing.