Here's to you! [Insert name], your special offer is inside: You can earn 100 Reward Dollars

This might be targeted but check to see if you have this in your American Express:

1. You Refer: Select the friends and family members you'd like to refer. All you need is their name and email address.
2. We Offer: Your friends will receive an email with an offer to apply for the Card. For you to qualify, they must apply through the offer link included in the email and be approved.
3. You Can Get Rewarded: Earn 100 Reward Dollars® for each approved referral — up to 550 Reward Dollars per calendar year. Terms and Limitations Apply.

More friends can lead to more rewards for you. For approved referrals, you will earn: Refer 1 Friend and Earn 100 Reward Dollars. Refer 3 Friends and Earn 300 Reward Dollars. Refer 5 Friends and Earn 500 Reward Dollars.