Just wondering...were the promo codes input as coupons or as gift cards? They have to be rung up as gift cards, not coupons, or they will not work. I haven't gone in to use mine yet, but I know this has happened in the past. When I combine my BB rewards with BB gift cards, the rewards have to be used first (as coupons) and then the gift cards are used as payment. With the cashstar codes, they have to be used as payment, not as coupons, or they will be rejected. I'm not sure if that's what happened, but it could explain it.