Why is 10% off not applying to my first order?

Our 10% off promo is for first-time customers, and can only be applied to newly created accounts for customers who have signed up for our mailing list. 

This discount is automatically applied at checkout to all full-price items. It cannot be used with sale items or combined with other promotions and does not apply to gift card purchases.

The discount is valid for 48 hours. After 48 hours, we're unable to extend the discount.