Roku requires that names for channels within the Channel Store are unique. The name you have selected for your channel i

That is odd. Did you try searching for the channel both thru the Roku Search feature, and then also the internet site https://channelstore.roku.com/browse ?  Also, how long ago was your channel approved, myb it takes a couple days to be on the store.


Although, why are you resubmitting your channel?  When you go into your developer dashboard don't you see your channel already there to edit?