Nostalrius Begins - Quality wow vanilla realm (1.12)

Hi~
When I registered account ，I didn't receive a confirmation message from email.
As you kmow ，I have never changed the password.
When I went to chang the password today,the system told me "username or email is wrong!!!"
I can tell you all the information about my account,Including mail/ registration time/information of the role etc.
Is there any GM who can help me?
I don't want three months of effort in vain .I love this game!
Thank you all~

does really no one can help me?
I'm sure the mailbox is right.Maybe at time of registration,i wrote an extra character
I have tried so many times~~help me！