The self-help system is live today for testing for the players who need to reset their passwords or turn off email authentication on their account. Keep in mind that, with email authentication off, your account security relies on you using a unique and strong password for Guild Wars 2 that you’ve never used anywhere else.
You can find the instructions on using the self-help system here: http://en.support.guildwars2.com/app/answers/detail/a_id/9222
If self-help solves your issues, please make sure to close the tickets you opened with Support. Thank you.
You can find more tips for keeping Your Guild Wars 2 Account Secure in this article: https://www.guildwars2.com/en/news/tips-for-keeping-your-guild-wars-2-account-secure/
(edited by Stephane Lo Presti.7258)