Thank you for the guidance. As suggested, I've now also contacted Apple Developer Support directly regarding this enrollment.
Support case number: 20000136398426
Enrollment ID: 68UYPM637K
For context: this is actually our organization's second enrollment attempt. Our first attempt (a different enrollment ID) went through a very similar cycle - documents requested, submitted, and then the enrollment was withdrawn for reasons that didn't seem to match our actual situation, with no substantive response from support despite multiple follow-ups. This new enrollment was resubmitted by our company's owner/founder to make sure the legal authority requirement was clearly met.
Given that experience, I wanted to keep this thread updated in case the support case doesn't move forward either. If anyone from Apple can take a look at case 20000136398426 / enrollment 68UYPM637K, or if there's anything else you'd recommend trying, I'd really appreciate it.
Thanks again for your help so far.
Topic:
Developer Tools & Services
SubTopic:
Apple Developer Program
Tags: