Hi Ricky
According to the database, your friend has recently changed email addresses but has not clicked on the validation link in the system-generated confirmation email (ie, to confirm that the email address they entered is valid).
Please ask your friend to check his/her email inbox, junk folder etc for an email from SAU and follow the instructions in it. I have just re-sent it in case it didn't make it the first time.
Hopefully this sorts them out, if not let us know.
Cheers
Marc