https://community.worlio.com/forum/12/thread/249/Specifically:
Q: I tried registering but I have not received a codeword.Sometimes Worlds has difficulties with it's services. If you have not received your codeword, you should email
support@mail.worlds.com to let them know.
Please be patient! That is the only place you'll get help for your account. Do not bother HOSTs or other users as they can do nothing about it.
Q: I'm having account troubles.Email support.
support@mail.worlds.com