Ideally I would love a full table of the official country names (and country codes) used by this plugin, as it requires guesswork that it is working in other countries properly.
ie. is the US called The United States of America? United States (with a space?), US? And what about England, UK, or Britain? Or Great Britain?
For now I'm using this list below, but I won't know 100% if they're all right or not, as there's no link (UK or GB is my biggest concern).
Many thanks for your work.