With replacement card, you'll be treated as a new patron.
It will even appear as if app users have lost all your music as it is tied to your previous barcode.
The vendor is unable to transfer any data from old library card number to the new one.
Suggestion is to back-up your music so that you may reclaim it from your old barcode. See HELP.
You will also need to rebuild any created playlists and wish lists.
CHANGED EMAIL ADDRESS
Change notification email under My Account---Notifications.