I just did on Amazon.es and I awaiting an answer from another department, they'll contact me by email.
I translated OP's message to Spanish and linked a couple of websites (2 in English, 1 in Spanish).
Let's see how it goes.
Edit: Websites I've linked to Amazon.es: Neoteo, Polygon and PcWorld.
Edit2: They told me now that Amazon will not refund me, instead, I have to contact Nvidia.