No, I get that. What i was pointing out was that once it had a location, I couldn't change it (it never asked me again).
Clicking it should display a list of the answers you've chosen, and the top one should be your location. Clicking that should let you change your location.
If that doesn't work, drop me a line at jcrompton@infoxchange.org -- I'd love to get enough info from you to properly reproduce the bug so we can fix it.
Thanks!