Yes, this is more appropriate for American Citizens Services department, and they can be reached from the contact page link I posted previously. They would not forward it, I believe because for this sort of problem they are the proper handlers. All I wanted to do was correct the email address you offered so the IRC staff, who cannot do anything about this problem, would not suddenly receive a flood of emails about it. Good luck trying to get the credit card companies to work on the problem, which originates with Argentine banks, not Visa or Mastercard.