There may be several reasons why you might get a promo code error such as; the promo code has expired, etc. One way to resolve this is to subscribe to the Newegg newsletter since the majority of our promo codes are sent via email.
The American Express Newegg offer is a welcome bonus offer available to new Card Members on select American Express® Cards who apply online through Newegg.
American Express has partnered with Newegg to allow Card Members enrolled in the Membership Rewards® program to use points for purchases at Newegg.com.
