Your coupon has also been sent to your email!
If you are having trouble downloading directly to your phone (some phones won’t allow it) you can send yourself an email with the Moving Wallpapers attached or as a text message.
Or my fav way: using Dropbox, Google Drive or Files.
The same way you’ll do with a photo. Open Stories, select, add your content and publish.
Tips: ask a question, share a snippet of your new blog post, announce a sale. The sky’s the limit!