The Pay Over Time enroll bonus may have been targeted by Amex. Check again if you weren't targeted last time. Check your other cards if you were targeted. You don't have to change your default to the card you want to check before you click the link. If you switch between the different cards on your account, you can see if any have been targeted.
American Express sends out bonus offers of up to 30,000 points for signing up for pay over time. A charge card can be used more like a credit card by paying off balances over time. You don't have to apply the bonus to any charges or balances in order to get it.
Normally those targeted receive an e-mail or find the offer listed in their account, but the most recent offer of 20,000 points has a link that allows anyone to check and see if they're targeted The AMEX charge cards are some of the easiest to earn membership rewards on.
If you have a direct link, check to see if you are targeted.
You are not targeted.
Since you don't have to use the feature to earn 20,000 points, it will be the easiest 20,000 points you've ever earned. There are a few things to think about.
The rewards will be in your favor.