cant pay at airasia and threadless website using amex

got pop-up said my cc has been blocked. actually it is not. Coz i can use it at retails store counter. i dont know why my amex cant be use for online payment. so end up using mastercard for online payment.

i realy want to use amex as the treat point is higher than using mastercard.

This post has been edited by mrashdi: Dec 17 2012, 03:45 PM