Amazon currently has a promotion valid until December 22, 2018 where you can get a $15 credit when reloading $100 or more using at least one AmEx Membership Rewards point.
This seems to be. To receive your promotional credit you must:
- Activate this promotion (check to see if you’re targeted, or you can try entering AMEXRELOAD15 at checkout to receive your $15 promotional credit when you reload $100). Note that you will NOT receive the credit unless you click the activation button.
- Reload $100 or more between July 31, 2018 01:00:00 PM, 2018, and December 22nd, 2018, 11:59:59 PM
- Choose your Membership Rewards eligible American Express Card under “Select a payment method” and use Membership Rewards points for at least a portion of your Reload.
For qualifying purchases, a promotional credit of $15 will be automatically applied to the Amazon.com account that was used to reload your Amazon.com Gift Card balance within three (3) days after completing the qualifying reload using American Express Membership Rewards points.
This is a great opportunity to add an additional $15 to your Amazon account if you shop on Amazon already regularly.