Support Issues: "Pro sites signup page not publicly available"

Dear Sir/Madam,

My issue is with Pro Sites but I couldn't find it in the list supplied here. I made the Pro Sites Register page a Parent to other pages. Now the Pro sites register page (called "Pro") is unavailable, even after I removed the parent page status; please help?

Furthermore, I have asked fro help in the Community but I haven't had support for almost a week: https://premium.wpmudev.org/forums/topic/pro-sites-signup-page-not-publicly-available#post-892910

Please help! Many thanks,

Nanakow.