@FossilLight The 'Move & Transfer' process moves the entire account profile of the donor account to the receiving account thereby replacing all email accounts that currently exist on the receiving account. It is not possible to move individual email addresses from one account to another. As Danny mentioned the VM Forum Team will be able to advise if a Move & Transfer is possible in your situation when they reach this thread in due course.
As for the other point in your original post, yes, your orphaned virgin.net email accounts are at risk of deletion without further notice at any time as this should have happened 12 months after the adsl service was sold by VM. As you still have access to them you would be well advised to make sure that you have offline backups of the contents of the email accounts to preserve them after the accounts are closed.
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