Artifact Signing individual verification succeeds, but Azure identity request fails without a reason

I am setting up Public Trust individual identity validation for Azure Artifact Signing. The linked Microsoft Verified ID verification flow displayed "Verification successful". After returning to Azure and refreshing, the individual identity request shows "Failed". Its details provide no failure reason or next action.

The Artifact Signing account was created successfully, and the required Identity Verifier role is assigned. The Azure support wizard correctly classifies the issue as Artifact Signing > Identity Validation - Individual > Validation Failed, but submission requires a paid technical support plan. Generic recommendations have not identified the actual failure category.

Is there a free official route for the identity-validation team to review this case or provide the failure category privately? Should the existing failed request be reviewed before any new verification attempt? I can provide a validation ID directly to Microsoft through a secure support channel, but will not post account IDs, documents or verification links publicly.