This domain is already associated with this account

This domain is already associated with this account

Dear Zoho Support

Login: admin@monthara.com
Domain: monthara.com
Email: monthara@futuware.com.br

Telephone number: +5517 992115797

A few days ago my registration process was broken on step telephone verification. I could successfully confirm the number later but  now, when I try to associate my domain with the email service, I get the message "This domain is already associated with this account "*****12""

What can I do to complete registration?

Thank you so much


Renato.