In early March, I noticed approximately $180 in unexpected charges to my Anthropic account. I’m a Claude Max subscriber, and between March 3-5, I received 16 separate “Extra Usage” invoices ranging from $10-$13 each, all in quick succession of one another. However, I wasn’t using Claude. I was away from my laptop entirely and was out sailing with my parents back home in San Diego.

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A Claude Max subscriber describes receiving ~$180 in unexpected 'Extra Usage' charges in early March while not actively using Claude. The usage dashboard showed 100% session usage despite minimal activity logs. After contacting Anthropic support on March 7, the user was met with an AI chatbot (Fin AI Agent) that couldn't resolve the issue, and repeated follow-ups over more than a month went unanswered by any human. The author notes this is a known issue reported by other Max plan users via GitHub issues and Reddit, and criticizes Anthropic's AI-only support model as a barrier to actual resolution.

I've been waiting over a month for Anthropic support to respond to my billing issue