Initial report: August 7, 2026 (UTC+8) Responsible-disclosure notice: This public post intentionally omits reproduction steps, campaign identifiers, regional sequences, payment-card data, live checkout/session identifiers, account credentials, executable files, and exploit code. The complete evidence package can be provided privately to OpenAI Security through the official coordinated-disclosure process. Dear OpenAI Security, Billing, Fraud, and Trust & Safety teams, I am reporting evidence of a potentially industrial-scale ecosystem abusing the integrity of ChatGPT Plus and Pro subscription issuance. This is not a request concerning an individual billing dispute. It is a systemic warning involving suspected unauthorized zero-cost paid-tier entitlements, cross-region checkout and promotion inconsistencies, automated payment-link and card-binding workflows, batch account operations, and possible anomalous Pro upgrades or subscription extensions. I am a legitimate paying customer, and I believe this deserves urgent investigation. Unauthorized paid-tier access is fundamentally unfair to customers who pay the full price. It can consume substantial compute capacity, create direct revenue and fraud exposure, distort subscription and usage metrics, and force stricter risk controls onto legitimate users. Important distinction This report is not an accusation against legitimate regional pricing or normal local payment methods. Some payment-link extraction tools appear to expose suppo…

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