$10 Amazon Promo Code Free w/ $20 Amazon App order [Exp. 06/30/20]
1. Download the Amazon App.
2. Login to your account.
3. You'll receive a $10 off coupon within 7 days for purchases of $20 or more* via the Amazon app.
4. Redeem your code within 30 days.
$10 Off $30 with Amex (YMMV) [Exp. 03/06]
Use Amazon Coupon Code AMAZ10OFF30
$5 back in eBook credit when you spend $20 on eBooks [Exp. 07/14]
* Note, To receive the $5 Amazon promotional credit you must Click Activate" on the promo offer and spend $20 on eBooks between July 5 through July 14, 2019. Offer valid for Amazon Prime Members only (login to account to view promotion)
I think it only works if you didnt ever have free prime on that account