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The account is still active: https://community.vodafone.ie/t5/user/viewprofilepage/user-id/1089
Have you reset your password - what happens when you try to log in with your username and new password?
I was also able to sign up for a new account with my old email address it's very weird. The request new password doesn't send me the link
Was a little worried there myself trying to get on through the usual method without any success.
Forgot password worked a charm though thankfully.
Evil - an of your older email addresses receive anything when you hit the forgot password link?
I've used the same email address from day 1 haven't changed it. Don't get any links to reset password for my original account only get it for the new one.