I also ordered from the FXTec website on 19 februari 2020, after waiting 2,5 years I decided to order one from expansys (with the intention to cancel my order and ask for a refund).
Today it arrived and it does work perfectly as I am responding to you using my Pro1x.
I'm not canceling my order (yet) because I would like to have another one just in case, like I did back in the days with my Nokia E-7 (still having all 4 of them, 2 in parts and 2 not charging).