Not sure about buying Eshop credit on amazon, but the code you buy from the Argentinian Eshop will not redeem on the US Eshop, you have to switch regions and download from there Eshop. It will show up as downloadable once you do switch back to the US Eshop though.
MadMatt, explained it perfectly well, the only thing to note is that for the Argentina’s E Shop its not like Mexico’s or the US. They don’t have the Eshop on the switch itself. After you change your region, you would type Argentina Nintendo E shop into google and it takes you to the Nintendo...
Don’t know if this has been posted, but over on SD someone mentioned that you could get Celeste for 4$ on the Argentinean E Shop. I switched regions to check and it does indeed cost 4$ and some change. They also have Wargroove for 4$ and Stardew Valley for around 3$. Total for Celeste and...
Did want to mention that mine also shipped, but that I took advantage of their assassins creed offer, of that which I did receive and can confirm the DLC works as intended.
Also wanted to add that the seller is legit, order both the Assassin creed for 34.99 and the Red dead for 34.99. My Assassians creed is out for delivery today, and I also received my tracking number for red dead which was shipped today.