[BUG] Unauthorized Pro→Max 20x upgrade, refund denied

Preflight Checklist

• [x] I have searched existing issues and this hasn't been reported yet
• [x] This is a single bug report (please file separate reports for different bugs)
• [x] I am using the latest version of Claude Code

What's Wrong?

Hello,

Today, without my authorization or any request on my part, my Claude subscription was changed from the Pro plan (€20 per month) to the Max plan (€200 per month). I immediately requested a refund, but the chatbot denied my request.

That said, since thousands of users appear to be experiencing the same issue, and since refunds are reportedly not being issued,As I am a lawyer, I have opened a Europe-wide Class action, participation will be free of charge.

Please leave your contact details below if you would like to join the collective action. As of today, we are around 800 people.

What Should Happen?

Hello,

Today, without my authorization or any request on my part, my Claude subscription was changed from the Pro plan (€20 per month) to the Max plan (€200 per month). I immediately requested a refund, but the chatbot denied my request.

That said, since thousands of users appear to be experiencing the same issue, and since refunds are reportedly not being issued,As I am a lawyer, I have opened a Europe-wide Class action, participation will be free of charge.

Please leave your contact details below if you would like to join the collective action. As of today, we are around 800 people.

Error Messages/Logs

Steps to Reproduce

Hello,

Today, without my authorization or any request on my part, my Claude subscription was changed from the Pro plan (€20 per month) to the Max plan (€200 per month). I immediately requested a refund, but the chatbot denied my request.

That said, since thousands of users appear to be experiencing the same issue, and since refunds are reportedly not being issued,As I am a lawyer, I have opened a Europe-wide Class action, participation will be free of charge.

Please leave your contact details below if you would like to join the collective action. As of today, we are around 800 people.

Claude Model

None

Is this a regression?

Yes, this worked in a previous version

Last Working Version

_No response_

Claude Code Version

Hello, Today, without my authorization or any request on my part, my Claude subscription was changed from the Pro plan (€20 per month) to the Max plan (€200 per month). I immediately requested a refund, but the chatbot denied my request. That said, since thousands of users appear to be experiencing the same issue, and since refunds are reportedly not being issued,As I am a lawyer, I have opened a Europe-wide Class action, participation will be free of charge. Please leave your contact details below if you would like to join the collective action. As of today, we are around 800 people.

Platform

Anthropic API

Operating System

macOS

Terminal/Shell

Terminal.app (macOS)

Additional Information

_No response_