Don't Let Your Domain Name Become a "Sitting Duck"

Why can't I have the buy now landing page? even if I made the name servers NS5 and NS6 of Afternic?? Yes this happened to me in the past too. Some staff from Afternic saked me to follow his guide. He asked me to remove all from Godaddy auctions and remove the multiple listing blah blah.... Not sure exactly what he told me but I did all and few started showing buy now button - not all.

I finally moved my listing to Dan.com only. Dan is perfect except I couldn't generate any sales.
Now after long months I bought one domain and post it on Atom.com for few days. Few traffic and nothing. However thinking Afternic has more reach, I changed the name servers to NS5/6 and guess what? No buy now lander. The lander asks for registration to get quotes in 24 hours. Why am I deprived of the "buy now" lander? Is it a restriction or what??