Comment by fmariluis

"Currently, developers in the below countries may register as Google Checkout merchants and sell paid applications. We're working hard to add more countries, but we're unable to provide any guidance on timelines.

    Australia
    Austria
    Belgium
    Brazil
    Canada
    Czech Republic
    Denmark
    Finland
    France
    Germany
    Hong Kong
    India
    Ireland
    Israel
    Italy
    Japan
    Mexico
    Netherlands
    New Zealand
    Norway
    Poland
    Portugal
    Russia
    Singapore
    Spain
    South Korea
    Sweden
    Switzerland
    Taiwan
    United Kingdom
    United States"

Source: https://support.google.com/googleplay/android-developer/answ...

That leaves out Chile and Uruguay as well, so this change appears to be unrelated to the current situation in Argentina.