如何在新的itunesconnet中移除预发布版本?

I have added a version 1.0 in prerelease section in new iTunes. Now i need to upload same version(1.0). but i am getting error that version 1.0 is still there. I have already rejected binary but 1.0 has not removed from Pre-Release.I have added a version 1.0 in prerelease sectio