There is a linked Apple Support article; appears above your question, in upper-left side.
• Find Apple Customer Numbers, Reseller IDs, and Organization IDs - Apple Support
https://support.apple.com/en-us/HT204401
"This article is for system administrators. If you need support, learn how to contact Apple."
Numerous details in the article pertain to 'officially sanctioned access' to administer these.
Additional ideas may have regional options ~ while could differ from those in article.
Check the following article that shows regional contacts and options:
• Contact Apple for Support and Service - Apple Support
https://support.apple.com/en-us/HT201232
Contact Apple directly for help to resolve admin issues, as needed.
• Contact - How to Contact Us - Apple
https://www.apple.com/contact/