That happens every time your ip address changes. I HATE it - it's not like my computer or its location has changed (yes, they can see that) and yep sometimes that stupid email doesn't show up right away, so you ask for another to be sent & suddenly the first one has shown up. But you don't KNOW that's the first one, so you try to put in the code & it's the wrong code because that got reset when you asked for a new email...

Seriously, do better with your account security ZoS. Obviously THIS measure only serves to frustrate the legit players, given the number of recent threads detailing how players accounts/account currencies are being "stolen" atm. (Pro-tip kids! Don't buy crowns from strangers during the launch of new content! Or, and I should not even have to say this, but don't buy power-leveling either!)