How to change email address tagged to Account

Hi, anyone know how to change the email of the Haypi account? My registered email was tagged to my ISP and now I'm changing ISP, hence email used for Haypi will no longer be valid. Before this happens, I need to change the email in Haypi somehow, somewhere! anyone can give me some guidance? thanks.

In game, tap general, tap kingdom managment, tap change password....the option to change email is there

Yeah, I change mime alot

Why?

My first email had my name in it I'm only like somewhere around 13-20 and my mom saw that it wasn't good cause people could see you name. Mom's idea