How to block someone?

How do I block someone? I'm getting harrases constantly 

Edit: the profile was called 

NAS91091

But now they have copied my name! 

Parents Reply
  • i click your profile and go into blogs and it says theres no blogs to see.

    your harrasser sounds suspicious then if they can view and access your blogs that none of the rest of us can see or access. kinda sounds like either they have staff privileges somehow or they are a hacker lol

Children