@sinucity The TXT record that you’ve added is insufficient.
The Support Guide is here:
https://answers.netlify.com/t/support-guide-another-site-is-using-this-domain-verifying-domain-ownership-for-netlify-production-domain/13765
The name of the record should be verified-for-netlify
The value should be:
https://answers.netlify.com/t/request-to-verify-domain-ownership-for-rodrigo-londrina-br/127474