Update: This offer is expired.

Amex Delta Bonus Offer Promo Link

Similar to the 2,500 bonus starpoints offer, American Express is now offering 2,500 bonus Delta miles when you add a free additional user to your Delta Gold consumer credit card and spend  $500 on the new additional card within 3 months.

A social security number is required for adding the additional user. There is no hard credit pull for the additional user, though the new account will show up on their credit report.

Limit 1 bonus per account.