I appreciated their other article: where OP explains how there are two segments of the antarctic research station: an American one, and an NZ one.

Their bank loses their mind when their bank card is physically used in America and then in NZ 30 minutes later and OP has to clear up how that isn't impossible.

> Being in Antarctica is weird, because you can travel back and forth between the “United States” (McMurdo) and “New Zealand” (Scott Base) in less than 30 minutes.

> Credit card companies have a hard time with this.

https://brr.fyi/posts/credit-card-shenanigans

Edge cases mang!