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:

Please help! Many thanks,