I made a mistake putting my email as contact@. I could change it following this tutorial but not.

https://help.zoho.com/portal/helpcenter/articles/how-to-change-the-primary-email-address-in-zoho-26-9-2015

When I go to control panel ( https://mail.zoho.com/cpanel/index.do#userdetails) I see my e-mail as my name now (orlando@), but when looking for default e-mail or mailbox address at the user profile, there it is contact@.

I tried to delete the entire domain, but it doesn't work.