Google AI Studio: "Failed to list models / Access denied" on my account

Hello, I am experiencing an issue with Google AI Studio that affects only one of my accounts. When I try to access it, the interface loads for a second, then I get the error “Failed to list models”, followed by “Access denied, please try again”, and then I am redirected to the Available Regions page. I have checked the following: I am in Spain, which is a supported region. My payments profile is set to Spain. The account is a personal Gmail account. I am over 18 and there are no security alerts or pending verifications. I have tried different browsers (Brave and Edge) and also in incognito mode. On the same device and network, another Google account can access AI Studio without any problem. Gemini works correctly on the affected account, including the active subscription. All evidence suggests this is an account-specific issue. Please review my account and help restore access. Thank you.

Hi @Teknimatiks,
We have recently rolled out a mandatory age verification initiative across signed-in customers globally, Accounts that have not completed explicit date-of-birth/identity verification should do so by navigating to [Google Account Age Verification](https://myaccount.google.com/age-verification) or verifying date of birth in [Google Account Personal Info](https://myaccount.google.com/personal-info)."

Also, disconnect any VPN, proxy, or iCloud Private Relay and access AI Studio directly.

Make sure you are accessing AI Studio from one of the [supported regions](https://ai.google.dev/gemini-api/docs/available-regions)

After completing these steps, please try again in a few hours, If you still face issues, please let us know.