My experience is very similar to the one described by Señor Bling: I'm avoiding to sell outside of the EU, including to the UK, it's just too much trouble. Same for purchases actually, I'm actively looking for ways to replace Thonk, love them but shipping from UK to Belgium is so stupidly slow and difficult now that I prefer sourcing parts myself than buying a kit from Thonk...
--- Voltage control all the things ---