OpenAI retroactively re-measures usage on mid-week Pro downgrades — new plan can start at 0%

New-Stop1494 · reddit · 2026-11-13

A Reddit user documented a harsh OpenAI billing quirk: at 49% of his Pro 500 weekly Codex allowance, he downgraded to Pro 200 — and the same week instantly showed 100% consumed, with no new usage.

OpenAI support confirmed in writing that after a plan change, already-accumulated usage is re-measured against the smaller allowance, so his new plan started at 0% for the entire week and a banked reset was burned in the process.

Support refused to restore the banked reset or offer credit, stating there is "no additional escalation or billing review available" — no appeal exists. Practical takeaway: if you downgrade Pro tiers, do it at the very end of your usage window and spend banked resets first.

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