How to stop the link spam on my page?

[elliot100]

Hey guys,
A lot of people spamming my pages with links/porn/other fan pages - they are using fan pages or fb accounts to like every post of them so it appears on the top. I always ban and delete but I can't stop them all, it never ends.
How can I stop this permanently?

 

[*zap*]

Just a sec I will need my crystal ball for this one, as you have posted so many details

 

[elliot100]

Just a sec I will need my crystal ball for this one, as you have posted so many details

Here is an example:
http://i.imgur.com/Ny7AB95.jpg
there is ton of it

 

[labba20]

Dont have a permanent solution of it.Only u can do delete those spam messages and ban them.