email have been changed, so you could contact Anet's to bring it back to this email if you have info (CD KEYS etc)
if you dont change mail, and if you dont have CD-KEYS, you have been hacked, probably for years, and its lost, sorry
BTW, to contact them, go to the gw2 support and then say it's a gw1 problem, anyway, they are linked, so you can do a gw2 ticket.