AMEX Mobile Wallet offer is on again - spend $30 or more, in one or more transactions, in-store, online or within app with Apple Pay, Samsung Pay or Android Pay to get one $10 credit.
I believe this is only on Amex issued cards, limited to first 15,000 cards registered.
UPDATE: Looks like it may be targeted to new Amex issued cards e.g. my Explorer card was issued about a month ago.
Not showing up on my DJs AMEX in my AMEX app