box is lame and needs to run a script, it will probably take a few days, I'd open a ticket

I was told this post IS the ticket?

maybe it depends on your tier, on business plus you can create an actual ticket

Hi Liz, 

Welcome to Box Community and glad to help!

Great news! I went ahead and fixed your storage count. To verify this, log in to box.com> Account Settings> Storage Used.

In the future, if you experience incorrect storage, please let us know in this forum.

Thanks for posting!