Refund giftcard
I mistakenly used the US Apple store instead of the local one purchasing a gift card.
(Google search led to US Store - which happily accepted my Apple ID and creditcard).
Now the regional restrictions prevent me from redeeming the gift card, and, after spending a couple of hours speaking to 6 support agents, both in US and, locally, it does not seem to be a way to refund this purchase:
If I understand support correctly purchase cannot be refunded since it's "delivered".
But delivered or not, I cannot actually use the item so a refund seems perfectly in order...