Manual billing sync request — "Error during billing setup" on multiple projects despite active Cloud Billing payment method

I’m hitting “Error during billing setup” when clicking “Activate billing” in AI
Studio, across multiple projects under my account — all three show “Free trial”
/ Free tier limits despite Cloud Billing showing an active payment method in
Google Cloud Console:

  • gen-lang-client-07340052.. (key ends …BUfQ)
  • gen-lang-client-04122107.. (key ends …ML7w)
  • gen-lang-client-06256098.. (key ends …bAfw)

This matches other reports of a sync mismatch between Cloud Billing and AI
Studio’s prepayment system. Could someone manually sync billing status for
these three projects? Happy to provide any additional details needed.

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