Prepay balance $20 shown but API still returns "prepayment credits are depleted" after two $10 top-ups

Hi team,

I have topped up twice with $10 each (total $20) on July 31, 2026.

AI Studio Billing page shows:

  • 赠金余额 US$20.00
  • Prepay
  • Billing Account ID: 0149A4-B09215-0A97..
  • Project: project-adaf76b9-8f4b-45cf-a..

But every API call still returns:
429 RESOURCE_EXHAUSTED - Your prepayment credits are depleted

Payment receipts confirm both $10 payments went through successfully (Google Cloud / 银联).

Please help manually sync the billing state for this account.

Thank you.