Email Email Bug or mistake

Dear Devs,
My Email in Battle.net is different from my Phone’s email…so it wouldn’t coincide with each other when i get the key code from Battle.net app. is there anyway i can make my Battle.net email same with my current Phone’s email because my Battle.net email is older and i had new email that i used in my Phone…

Greetings!

The Battle.net Account Management website can be used to change your email address on your account.

– Kraiden