Request for manual review - 403 PERMISSION_DENIED: Your project has been denied access — new project, no billing

Hello,

I’m requesting a manual review of my Gemini API access, which is returning a 403 PERMISSION_DENIED error on all requests.

Error message:

[GoogleGenerativeAI Error]: Error fetching from
https://generativelanguage.googleapis.com/v1beta/models/gemini-2.5-flash:generateContent:
[403] Your project has been denied access. Please contact support.

Project details:

  • Project name: obsidian-gemini-5024..
  • Project number: 10627690278..
  • API key name: Obsidian-Gemini-Key
  • Key created: Jul 14, 2026
  • Billing Tier: Unavailable (shown on the API keys page)
  • Billing account: none set up — this is a free-tier-only project
  • Account type: personal Google account, newly created

What I’ve verified:

  • This is a freshly created project with no prior usage history and no known policy violations.
  • Generative Language API is enabled on the project.
  • The error occurs on all requests, regardless of model (tested with gemini-2.5-flash).
  • No billing account is attached, so I’m unable to use Cloud Billing Support — I’m not listed as an administrator on any billing account, which appears to be expected for a free-tier project with no billing set up.
  • I have no visible banner or warning on the AI Studio Projects or Billing pages beyond the “Unavailable” Billing Tier label shown above.

Request:
Could someone review this project and confirm whether there’s a flag on the account, and if so, clear it? I’m happy to provide any further details needed.

Thank you.