Any duplicate emails will be rejected automatically. You would have to sign up using a different email TEMPORARILY.
However, after your new mailbox is approved and activated, you may contact us to 'merge' your accounts, so you can use a single email address to login to your mailboxes.
If you still need assistance, you can reach us at the following channels;
Call us - https://www.anytimemailbox.com/contact
Live Chat - https://www.anytimemailbox.com/