Unfortunately Discover and AMEX are not part of the Credit Card Protection Program and Earny will not be able to protect your Amazon purchases with these cards.
Unsupported, but coming soon!
Unfortunately AMEX is not a part of the Credit Card Protection Program because they do offer price protection as a benefit.
If you have any of the other Chase, Citibank, Mastercard or Visa credit cards, we recommend you add it to Earny! We are expanding that extra layer of coverage to additional credit cards in the future.
Regardless of where you shop/what card you use, you are always protected by 30+ major retailers for up to 30 days. Simply make sure your email receipts are forwarded to the email associated with Earny.