[BUG] Max 20x subscription silently showing as Pro — backend account sync issue

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?

My Claude Max 20x subscription is not being reflected on my account. Despite a successful payment (dated May 26, 2026), my account displays Pro-level access and I am being rate-limited at Pro usage limits. This started on June 10, 2026. Anthropic support (Fin AI Agent) has confirmed this is a backend account sync issue beyond client-side fixes.

What Should Happen?

Account should reflect Max 20x plan with 20x usage limits, as the invoice is paid and confirmed.

Error Messages/Logs

No error messages. Account silently shows Pro plan in Settings → Billing despite paid Max 20x invoice.

Steps to Reproduce

1. Upgraded from Pro to Max 20x on May 26, 2026
2. Account worked fine initially
3. On June 10, 2026 account reverted to showing Pro plan
4. Tried: logout/login, cache clear, multiple browsers, mobile device — none worked

<img width="2016" height="1090" alt="Image" src="https://github.com/user-attachments/assets/f9f13f0b-2393-468a-a27e-75738241aca7" />
<img width="2016" height="1090" alt="Image" src="https://github.com/user-attachments/assets/851cd915-d6ee-4fb7-b57a-999ffbad68c4" />

<img width="1312" height="912" alt="Image" src="https://github.com/user-attachments/assets/a7326151-c115-418d-8223-ce388b21820d" />

Claude Model

None

Is this a regression?

Yes, this worked in a previous version

Last Working Version

Jun 9/2026

Claude Code Version

N/A - This is a claude.ai billing issue, not Claude Code

Platform

Anthropic API

Operating System

macOS

Terminal/Shell

Terminal.app (macOS)

Additional Information

This is a billing/account sync issue on claude.ai, not a Claude Code bug. Reporting here as directed by Anthropic's support agent (Fin AI Agent) via email.

• Max 20x invoice dated: May 26, 2026 (status: Paid)
• Issue started: June 10, 2026
• Max plan expiry: June 26, 2026
• All client-side fixes attempted: logout/login, cache clear, multiple browsers, mobile
• Anthropic support confirmed this is a backend account sync issue

[Attaching screenshots of paid Max 20x invoice and billing page showing Pro]