You can update your email address by clicking on the "Settings" cog icon towards the bottom of the left-hand navigation panel.
You'll arrive on your Settings page, where you will need to click the button that reads "Change email address".
Once clicked, you'll be presented with a modal, where you'll need to enter your new email address and current password.
Once you have clicked "Save changes" you'll receive an email to your new email address to confirm your changes.
Please note: Your email won't be updated until you confirm this. Once confirmed, you'll now log in to Zibbet with this new email address.