From: Vermont, USA
We would like to address those limitations as well, but with regard to the store we work with a store partner (in this case, Plimus) which means that to make changes we need to work together with them. It took us years to be able to offer gift cards at all. This is the first time since we started offering them that I've seen a complaint about the discount code and gift card unable to be used together. We knew this was a limitation and an inconvenience, but the situations where it comes up seem to be quite rare. It was better to have gift cards that covered the majority of cases than to have no gift cards.
Shipping is a pass through cost to us and unfortunately without much more store work, which depends on our store partner, we can't get the gift cards to cover shipping. They'll cover 100% of a download order and will cover everything but shipping on a physical order.
It's important to note that there is a difference between what we want to be able to offer our customers and what we are able to offer, due to the limitations of working with a store partner.