* Sweden has the biggest population at 9 million, but this thing will likely be supporting Germany soon at 81 million
* The thing enforcing `purchase_country` is Shopify – based on the billing address, we show payment options that work for that country, right? This Shopify-supplied country code is passed to this method.

It really is an exceptional case, but I can set it to 'sv-se' so as to not bail out.