Enrolling in Roku RAF Monetization

I’m submitting my first channel I intend to use advertising on. More specifically Roku’s RAF advertising. It’s staying on a red exclamation mark, and when I click on it, it says “Please enroll in Roku’s Billing Services Program” but when I click it, it takes me back to the Developer Site homepage. Under My Developer Info it says “Roku Billing Initiated” and when I click into the Edit field, it only seems to ask my email address for Paypal, which is entered and correct. Then I come back to the checklist and Monetization is still a red Exclamation mark?!

Is there something else I need to do for this to enroll?

Seems your account have fallen into a famed billing enrollment “limbo” state.
PM RokuTomC about this if you are still not enrolled - he can fix you.