I surfed surfer rewards promo and it states I surfed zero why?

When surfing a surfer rewards promo in order for it to work properly

and count the number of clicks you made, You have to make sure 

that you have the correct information in all sites doing the promo.

Your username and email address needs to match in all the sites you are surfing,

otherwise it will confuse the system and you won't get your reward.

Example( mysite.com  user me,myeamail.com and othersite.com user me,myemail.com)

I hope this helps