We duly turned up at the village school to cast our votes in the EU election, to be greeted by our amiable maire, saying "Ah no, you are not eligible to vote". We protested of course, pointing out having received our new voting cards within the last few days. M le maire said he had not signed them, but sight of his signature put paid to that. "It's only valid for municipal elections", which we disputed. He responded by bringing the list of European residents entitled to vote and pointed out our names were not present.
By virtue of further protests he then said, "Oh, I've turned over the page and there you are!" He then gave our cards to the presiding officer and invited us to vote. As I passed along the line of "bulletins" he pointed out which was his party (actually he confirmed my comment if it was his party by saying "c'est moi"). I picked one up, mentally spat upon it, and in the booth tore it into pieces. I was sorely torn between the Animal Party and the Esperanto party which both seem very pro Europe. But eventually voted for a mainstream party group.
So not only in the UK was there some evidence of gerrymandering.