Aha! Looks as if you did the change at
exactly the wrong time
I guess you hit the server during the software swap-over.
Three choices - first two if you want to use original name
1) 'Re-change' your email address to trigger an email.
2) If that does not work (remember to check the new address inbox
for that email)
use the 'contact us' link at page bottom to get admin to look at it.