Changing @ubuntu.com address

When I created my launchpad account initially, it was https://launchpad.net/~boredandblogging/. I've changed it now to https://launchpad.net/~nali/. I noticed that <email address hidden> is still active, but <email address hidden> isn't. I would like to use <email address hidden> if possible.

I made the change from boredandblogging to nali a week ago.

thanks.