The license cannot be purchased while in the US, thus this thread.

I've attached an image of what you get while in the US (North America) geolocation and hit up the https://shop.jolla.com website.

The problem will continue to exist unless a third party that's willing to ship to the US is listed. As an American (USA) resident, I have a tablet and Jolla C. The Jolla C does not have the proper 3G/4G/LTE channels to connect. Best I've gotten was 2G in a few cities (I think) but nothing in the more rural area that I presently live in.

The Xperia X does have the right GSM radios but as stated above, obtaining the license is not available for the North America market for purchase.