Hi Balz, 

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! 

thanks for fixing this.

you could implement it the same way it is on a computer: as soon as you delete it in the trash, space is freed up

br b