Audible via American Express offering American Express cardholders can get a free 6-month Audible Plus trial subscription. New Audible subscribers can take advantage of this promotion.

Offer details: This offer is valid until February 28, 2022.
You must access the offer page from a US IP address, confirm your eligibility by logging into your American Express Card Account, and then sign up for an Audible Plus Subscription on the Audible Website.
Your Audible Plus subscription will auto-renew after your 6-month free trial ends unless you cancel it.
You have the option to cancel at any time.