Send an email to the Structured Data team @katbuzzco
sdsupport@ebay.com
Tell them the site (ebay.com since you're in the US)
The list of categories affected (with full navigation path)
The Item specific field(s) & what's missing
The appropriate team will review the request and decide whether or not to make the changes. They will follow up with you once the ticket is closed out. Some categories will see quick updates and other categories may not implement the changes for a few months. Some requests are denied, but in my experience, most requests will go through.
