3 ms·

Its broken for American Express cards. Amex cards don't do the number as 4 groups of 4, and the security code is on the front. EDIT: I apologize it works! (no

Its broken for American Express cards. Amex cards don't do the number as 4 groups of 4, and the security code is on the front. EDIT: I apologize it works! (note I did try it but apparently mis-typed my first four digits ....)

sbarre 12y ago
It worked fine for me on my Amex tests. 4-digit security code showed up in the right place, numbers were grouped correctly.
cdellin 12y ago
Did you try it? It gets the 4+6+5 and CVC on the front just right!