Well, I just tried entering the Email, In Different Variations for you, And Received the Same Message.
Usually, They will send an E-mail to you about any changes. See if there is one on your E-mail.
If Nothing Works, Send a Ticket to Z8games Stating What happened, Include as much information about the account as possible, And Your IP Address (This is the only thing that distinguishes you from another person.)
Z8Games - Support