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Fin AI Support Chatbot Deployed by Anthropic Reportedly Prolonged a Canadian Engineering Firm's $3,500 Billing Dispute

Occurred
Oct 15, 2026
Published
Oct 15, 2026
Source
AI Incident Database

Summary

An executive at a Canadian engineering firm alleged that Anthropic's Fin AI support chatbot kept him in circular conversations for weeks while he sought a refund for a $3,500 duplicate Claude AI subscription charge. He later sought a chargeback; Anthropic reportedly canceled the working team account, disrupting work and requiring another subscription purchase. The report does not establish that AI caused the charge or cancellation.

Developers

  • Fin
  • Chatbot developers
  • AI customer support system developers

Deployers

  • Anthropic

Harmed parties

  • Engineering firms
  • Companies
  • Claude users
  • AI customer support system users

Classification

Category confidence: 90%
Severity confidence: 80%

Rationale: AI chatbot failure causing billing dispute and customer service issues without physical harm or legal action.

Classifier: Qwen/Qwen3.5-35B-A3B-FP8

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