Hello, I need to change my email from financeiro@hazas.com.br to financeiro.hazas@gmail.com and I can't do it. I need help!

I always receive this email.

I urgently need to change my email. Can someone from support help me? I accidentally created a new account for the email address financeiro.hazas@gmail.com. I've already asked to remove it, but it won't be removed and I can't change it.