Originally Posted by
GoAmtrak
At AS GC checkout, getting a "Please enter a valid security code." error even after deleting and carefully readding the card to my AS wallet. Possible AmEx is nerfing these transactions based on known Aspire card numbers, or a temporary glitch and I should try again later? Not seeing any general reports of transaction errors on the AS forum.
This is an issue with the AS site, and I have reported it to them. Even though the security code for Amex is the 4 digits on the front (and their guidance even shows this), they really want the 3 digits on the back. Seems that they have not fixed this.
Cheers.