My Chanel is not monetized and I'm selecting "None of the above apply. I will not be monetizing my channel." but still the monetization step is not getting completed.
can you post a screen shot please , something must be wrong , when you select no for monetization and save it should be marked completed.
this is a setup part for SDK channels not Direct Publisher channels.
re-post your question here please
https://community.roku.com/t5/Roku-Developer-Program/bd-p/roku-developer-program