Hi @Ryne-2047 , if your organization has a Microsoft account manager or partner representative, that's usually the most direct channel.
The nature of the request depends on your ask. You could always open a support ticket in the Azure Portal or Microsoft 365 Admin Center.
Please let me know if you have any questions and I can help you further.
If this answer helps you please mark "Accept Answer" so other users can reference it.
Thank you,
James