Password reset

We have been customers for a long time...

My wife and I both have blueyonder.co.uk email accounts.  As account holder, I initially set up sub-accounts (email addresses) for my wife and each of our children.  I used to be able to see these and manage passwords (in fact originally, only I could do this - they couldn't manage their own accounts).  I cannot find this page anywhere on my account details.

My wife has a new laptop, and cannot remember her email password (not something you use very often when emails are synched onto a computer) but we can't find a way to either recover or reset this.  The account is still active and on her iPad, but it doesn't show the password.

Any help and advice??  Thank you!