Unable to activate Gemini API billing — prepayment setup error

Hello Google AI Studio Support,

I created a new Google AI Studio project and generated an API key. However, the project shows:

  • Billing tier: Activate billing
  • Project status: Make payment / Prepay required
  • Rate limit page: Project quota tier unavailable

When I click “Activate billing,” I get this error:

“Something went wrong. We’re working to restore it as quickly as possible. Please close the window and try again in a few minutes.”

I tried again in Chrome Incognito, but the same error occurs.

Could you please check whether there is a billing or prepayment setup issue with my project and advise how to enable Gemini API access?

Thank you.