Quota depleted instantly after reset; Unauthorized/Anomalous usage detected (214 rounds on unused models)

I am reporting a critical issue where my quota was depleted almost immediately after the daily reset. Upon reviewing the usage logs, I found a massive spike in activity that I did not initiate.
Timeline & Incident Details:
Quota Reset Time: Today at 15:59 (Please specify timezone, e.g., UTC+8)
Depletion Time: Within 10 minutes of the reset (by approx. 16:09).
The Anomaly: My entire quota was consumed without any active sessions or manual input from me during this window.
Evidence from Usage Logs (See Attached Screenshot):
The usage dashboard for Aug 27, 2026, shows a total of 214 rounds consumed across multiple models that I do not typically use or have not accessed recently:
gpt-5.6-sol: 103 rounds
gpt-5.6-luna: 38 rounds
gpt-5.5: 28 rounds
gpt-5.4-mini: 21 rounds
gpt-5.6-terra: 16 rounds
gpt-5.4: 8 rounds
Why this is suspicious:
Volume: 214 rounds in a short period is impossible for manual human interaction.
Model Distribution: The usage is scattered across many different model versions (sol, luna, terra, etc.). I did not switch between these models, nor do I have automated scripts configured to cycle through them.
Timing: This happened right after the reset, suggesting a potential race condition, a billing system error, or unauthorized access to my API key/session.
Request:
Investigate Logs: Please check the server-side logs for my account around 15:59 – 16:09 today and the全天 of Aug 27. Identify the IP addresses or client IDs associated with these 214 requests.

<img width="594" height="410" alt="Image" src="https://github.com/user-attachments/assets/db479736-1408-4c5e-bc93-632cb5f12b1f" />