Problem with Halo Channel

So I finally bought my Halo TMCC and it came with the code for Halo: Nightfall, where I typed it and it worked perfectly, I watched the 5 episodes of the series, but nothing happened, I did not get the Nightfall armor in Halo 5, where , when I pressed … I think X during the episode, I could see my progress and there I said I did not watch any episode, so I saw again and nothing, I did not skip a single scene, I did not pause a single scene, not I returned a single scene, I just put it, I left the control aside and watched … but nothing. I even saw the secondary scenes of the series to see if something happened and nothing. I’ve already restarted the app, Halo 5 and nothing. Can someone help me? The code was supposed to be a bonus, it should be something easy, but nothing happens and before they ask me, yes, I log into my account before watching.

These unlocks have been notoriously glitchy for various armors.
Try searching through the H5 forums specifically - there are a few threads in there that talk about this that might have some info for you.