Apparently I logged in from Kwinana

Hello.

So I just downloaded the new update and tried logging in. I had to enter my password again because it said I was logging in from a new location. This Usually happens after an update.
What happened that doesn't usually happen is it said I needed to use an unlock code I was emailed because I apparently logged in from Kwinana. I haven't been to Kwinana in a while and I don't recall playing PoE there.

I still have all my characters so I don't know if I was hacked, but I'm still worried.

Ok, and thank you