WotLK Lost my Email Login

Hello Dear Support Team.
Can you help me please if i lost my email login?
And i cannot log in my account in website but i can keep playing. I created a random account name for my email and did not save it, after I cleaned my browser, I could not access my Google email. When i try to log in my account on website i must accept authenticator code on my email but i cant log on my email. I can screenshots from my account in game etc.
Thank you very much for attention.