I've created 2 billing statements and paid Google Cloud 3 times, but I still can't use AI Studio: 429 Your prepayment credits are depleted. Please go to AI Studio at https://ai.studio/projects to manage your project and billing

I’ve created 2 billing statements and paid Google Cloud 3 times, but I still can’t use AI Studio: 429 Your prepayment credits are depleted. Please go to AI Studio at https://ai.studio/projects to manage your project and billing.

I have two billing accounts in my Google account, but AI Studio doesn’t recognize them, even though I’ve made three payments (10$ each). AI Studio keeps showing the error “No prepayment method set up for this billing account
Prepay is required for this billing account.” It asks me to SET UP PREPAY. When I click on it, I’m redirected to Google Cloud to create a billing account and deposit another 10$, a continuous loop, but I still end up paying and can’t use the service.