It would be great if customers could apply more than one gift card code on a purchase.

My example: We give volunteers a gift card code at the end of each shift. But they can't add up all those gift cards to, say, put it toward a $250 membership, or even buy more than one ticket in a single purchase.

I can imagine, as a customer, being frustrated by that and as the organizers, being annoyed at having to create work-arounds to accommodate customers who reach out wanting to use multiple gift cards on one purchase.