I see the issue may be my mail account was deactivated for inactivity and then reactivated. Isn't there a way I can demonstrate it's still me? I just didn't use the mail, but nobody stole it. Doesn't yahoo have a recognition system through my first confirmation email?

I cant login to my instagram account, as i had linked my yahoo mail to it . now i am trying to login, and otp is not receiving by yahoo mail.

Please solve this