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Each domain should have its own robots.txt and sitemap.xml and you should only reference that domain in its sitemap.

Hey there! Without looking at the listing in your account it's hard to tell what exactly might be happening here. If your client is currently managing their listing on Acxiom, Moz Local will not be able to update it on your behalf, which may be why it's not appearing there. Ideally the client would release their listing, allowing us to update it. Feel free to reach out to us at help@moz.com if you want us to take a closer look into the account!

So glad to be of help, William. Good luck with the troubleshooting!