Gemini API project restricted – 403 Permission Denied on Free Tier

Hi,

I’m trying to use the Gemini API from a Google Apps Script automation connected to a Google Form and Google Sheet.

I’m using a personal Google account and created a new Google Cloud project specifically for this.

The project is:
Plumbing AI Enquiries

The Gemini API is enabled and I have created an API key in the correct project.

However, AI Studio shows the project status as “Restricted” and says:

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

When my Apps Script calls the Gemini API, I receive:

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

I would like to use the Gemini API on the Free Tier and do not want to enable paid billing.

Could someone please review the project restriction and advise whether free-tier access can be enabled?

Thank you.