I was earlier having a discussion over Oculus Tickets regarding same point, Let me send you a screenshot for same. I have mailed them now as per your suggestion too. I hope your solution solves my problem.
My submission again got rejected, I mailed them first and notified them that this app is for S6 phone and then submitted app again, and they rejected for same reason.
I am attaching screenshots of what I sent them and what they further replied.
And while submission, I added a note : My app runs over Samsung S6 phone.
Have a look at feedback from Oculus Team
Not sure if the app is or isn't supported on the S6...this is the note we got "My app also runs over Samsung S6 Phone" But, the app is NOT in the store for this device. Please resubmit on the S6 device if it is supported.