@rag. Gustavino Bevilacqua Well spotted. Should be Ireland. Also it says "Katzenmilch" on the cardboard, indicates it was fabricated in Germany. And catmilk would onyl be written as one word by Germans as well.
I am not sure, this is a prank. There is surely customers, who demonstrate an education "level" that asks for such note. Ay ay ay.

@rag. Gustavino Bevilacqua Which country needs to show this to their buyers?