I pulled that info from a full export of my Amazon data and...
"Customer indicated they are currently in the Pacific Ocean" - "Amazon has medium confidence in the validity of this memory"
Well, then. I guess trying to break Alexa for Shopping by telling it I was in the middle of the English Channel really broke my "about you".
I also had managed to update my About You in weird ways - I got it to accept some kind of variant of "is a gold rewards subscriber of Jeff's Benzos powered by PillPack" and it agreed that was a valid service when I later asked it and guardrailed itself at the same time: