Facebook reporting help?

[suwan grg]

I have a fb id and sometime ago made a link to the id.
eg: http://www.facebook.com/mr.X
Then I made a slight alteration on the "mr.X" part to remove the link for the profile and make a page on the link.. But the page can't have that link. It says mr.X is not available.
Now I can't even revert the link back as the profile link (there is no option in settings to change it), and the page can't have the link. The previous link now says "page is not available, link may be broken or removed."
Did I run out of times I can change the link? (I have only changed it once)
How can I fix it?