Sorry, I wasn't sure where to post this ...
https://www.hometheaterforum.com/community/threads/anyone-join-the-disney-movie-club.329150/page-50
See post 993 for the same information ...
I've put old expired Universal UltraViolet codes into I-Tunes and they redeem fine and then go in to Movies Anywhere (rg Holiday Inn). I'm not saying you'll get the rewards points but they did redeem.
Maybe they were waiting for the Studio Tour to come back ...
Back when it was DMR, I think I had 4500 points waiting for a good disk set or newer film to be available.
The old Movie Rewards system had a limit (I think it was five codes per day) which was extremely frustrating. Especially if you placed/received a big order with Disney(R) Movie Club and wanted to enter the codes before you misplaced the cases. (Or forgot which codes you already had entered).