Request for manual review – Gemini API Free Tier access restricted

Hello,

My Gemini API project is currently showing:

Status: Restricted
Billing Tier: Unavailable

Google AI Studio displays:

“This Project’s API access is restricted. Please set up billing to continue.”

When I call the Gemini API, I receive:

403 PERMISSION_DENIED
“Your project has been denied access. Please contact support.”

I only want to use the Gemini API Free Tier for development and testing, without enabling the Paid Tier.

Could a Google team member please advise how I can request a manual review of this restriction?

I can provide the Project ID privately to an authorized Google team member if needed.

Thank you.