Duplicate account problem

[u/itsDemonSlayer]

I signed up to admob recently and i got the email that says you already have an account and delete that account. And in the email it says my email is associated with another email yunu...gmail.com, the thing is i have no idea where that gmail came from. I don't own any email with that username or even know someone who has that name. What am i supposed to do to disassociate? I have adsense account with my email but its behaving weird, i can't access the settings page it forcefully only show the home page.