Not got one, but did some digging on Google, found a swiss website that will send out Euro Keys abroad, its here: https://www.eurokey.ch/en/people-with-disabilities.html a bit dear at £50 delivered, but they were the only site I found still offering delivery outside the EU.
The only other thing would be to see if you could buy one in person when you are in the EU.
In life, it's not who you know that's important, it's how your wife found out.