Please review the contributor application thread.
http://vatoto.com/forums/topic/1525-about-contributor-status-application/
It will tell you what's missing from your application.
Huh?
"Be from a group to upload your own comics. You should still have at least one upload to show you understand the system. Or be vetted from another contributor.
OR"
He is from Kyodai Scans. I could recommend it if that's necessary.
" Have uploaded at least a few chapters previously. There are no hard limits as requirement (roughly 10+). But it shows that you're familiar with how the system works."
He uploaded several Kongou Bancho's chapters - 50+ chapters, actually. Does he need to upload more?