How do I change my HISTORY Vault sign in email? To update the email address you use to sign in to HISTORY Vault, please send us a message and include both the email you are currently signing in with and the email you would like to change to. Related articles How do I cancel HISTORY Vault? Do I have to register in order to use the HISTORY Vault app? I’m having trouble signing in to HISTORY Vault. What should I do? I'm not sure where I originally subscribed to HISTORY Vault. How do I find that? How can I contact HISTORY Vault's Customer Support team?