Impossible to order anything from the online store outside of US

[BrianEdwards]

That's definitely unfortunate, I know that worldwide, sometimes there are issues with production and distribution that affect availability. Have you discussed this with your Bishop? I would expect that your Bishop would be motivated to help all his members not only be temple recommend holders, but also to have the necessary clothing (garments as well as the ceremonial clothing). If you are experiencing these issues, it's likely common for other members in your ward and stake as well, so getting the Bishop involved might help get some traction. It may be that if the Bishop calls and asks the same questions you are asking, he might get a better response.

I served in Cordoba as a missionary many years ago, arriving the same year they opened the Buenos Aires Temple, and it's incredible to know you now have a temple right there in Cordoba!