I know for sure that GG's recip links includes to URL's in it:
1. pointing to
http://www.link-o-rama.com/
2. pointing to the category you're submiting to
I had similiar problem 2-3 weeks ago, because I didn't mention that the recip is made of 2 links (I thought I had to link only to the category). BTW most of the LL out there work in the same manner.
I hope this helps.
ClickBuster