[Anveo] Changing the Main eMail Address in Anveo Preferences

  This could well turn out to be one of those famous 'facepalm' questions, but for the life of me, I cannot find it. My existing eMail address is about to be shut down, and I need to get the new one into there. Please, how/where do I change the main eMail address in the Anveo Account Preferences settings ? I can find other specific things in their portal for which I can change my eMail address, such as where MP3s of VMs get sent, and Low Balance warnings, but not THIS. Thanks. :)