Afternic – Premium service?(100+ reseller sites), Some concerns/questions?

To join this afternic premium network, from this page,

(where they link you to 100+ reseller sites), compared to their standard listing version.
Number of resellers on premium, is 100,

a) what do you have to do, besides register?

any fee? any verification?

b) for your domain to be listed here, do you have to leave your domains at your register,

and can just point these domain dns to point to afternics name servers?

c) if listing on this afternic premium network,…

Afternic – Premium service?(100+ reseller sites), Some concerns/questions?