Fort Knox level account protection here

People won't be able to log into your account without your email. You use Hotspot shield to get an ip banned ip address and login through the site to deactivate your account. When you want to login again, you login through the site to send a re-verification link to your email. Then you put a new password and you can use your account again.

It is perhaps worthwhile to point out that there is some risk associated with this. For all we know, Nexon could implement a cap after which multiple blocked-IP access attempts would trigger a flag on your account. Sure, it's unlikely that they care enough to have this measure in place, but it's still something to think about.