Domain Validation - Two Domains

Hello Team,
We have two different domains used in our marketplace application and require a manual validation of the them since just one domain can be provided in the automated process. How can we go about this?

Thank you for reaching out in relation to Our Domain Validation process. The next steps will be sent to you via DM (Direct Message). Please refer to our domain validation resource: Domain Validation Explanation for any further questions you may have about the process.

Thank you.