It's a manu-matic process.
If i remember, at some point you would have clicked a link to initiate that process, which would send you email with a document to sign and return back to RokuCo. After accepting your PDF papers, dev.support will flip a switch on your account and then you will start seeing extra menus.
Check your email folders. Couple of years ago the email was coming from "firstname.lastname@example.org", titled "Additional Information Required" - don't know about now. If you got it, follow instructions. If not, ring developer at roku.com for help.