Like so, hopefully the link works for you:

https://amzn.eu/d/00yFWx41

The card arrives with a little lottery-ticket style scratchpad with I believe a 16 digit activation code underneath.

Thanks, I see. You're still giving Amazon and Mullvad your payment information, so unless you're purchasing it for someone else, I'm failing to see the advantage? Again, that's something you can already do with Uruky as well.

The advantage is that it makes it impossible for Mullvad or Amazon to associate my online payment with the activation code on the card, and by extension my Mullvad account.