I click the link from SPG.com to refer someone to the SPG Amex (the one on bottom right of homepage after logging in - "You can earn 5,000 Starpoints® when you recommend your Card to a friend and they are approved."), and the email was received by my friend. However, when my friend clicked through the email link, he wasn't able to complete the application because of an error. We tried a few different browsers and sessions with the same result. Eventually we gave up, and he went through the public offer link (same bonuses, except I don't get referral credit). Question to MPers: has anyone successfully made an SPG Amex referral recently? Perhaps it's just a problem with my link/account!