https://www.amexoffers.com/ select American Express Cardholders: 8 Extra Membership Rewards Points (Up to 3,000 points) for each $1 spent on eligible purchases made at Amazon using your enrolled/qualifying American Express Card by December 31, 2020. offer/availability may vary by cardholder. Enrollment is limited. Must first add offer to your qualifying American Express Card and use it to make a qualifying purchase at Amazon. Limit one statement credit per card member. Limit of 3,000 Membership Rewards points. Statement credit will appear on your billing statement within 90 days after December 31, 2020.