[BUG] Unauthorized "Gift Max 5X" invoice generated — never purchased (EBMIFEW5-0002)

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?

On August 12, 2026, invoice EBMIFEW5-0002 was generated on my account for "Gift Max 5X - 1 months," $105.00 USD. I never purchased, requested, or authorized this. My only active subscription is Claude Pro (invoice EBMIFEW5-0001, paid, Aug 10, 2026).

Support findings so far:

• Invoice EBMIFEW5-0002 status: "open" — no payment was processed
• Account plan confirmed as Pro only
• Support confirmed there's no indication I initiated this purchase within my account
• Support was unable to determine the origin of the invoice or confirm/void it, citing no access to internal billing logs

This appears to match a known pattern in related issues #51168, #51404, and #52080 — unrecognized "Gift Max" invoices generated on accounts without user action.

Account email: available on request (redacted from public issue)
Invoice number: EBMIFEW5-0002
Date: August 12, 2026
Amount: $105.00 USD (status: open, unpaid)On August 12, 2026, invoice EBMIFEW5-0002 was generated on my account for "Gift Max 5X - 1 months," $105.00 USD. I never purchased, requested, or authorized this. My only active subscription is Claude Pro (invoice EBMIFEW5-0001, paid, Aug 10, 2026).

Support findings so far:

• Invoice EBMIFEW5-0002 status: "open" — no payment was processed
• Account plan confirmed as Pro only
• Support confirmed there's no indication I initiated this purchase within my account
• Support was unable to determine the origin of the invoice or confirm/void it, citing no access to internal billing logs

This appears to match a known pattern in related issues #51168, #51404, and #52080 — unrecognized "Gift Max" invoices generated on accounts without user action.

Account email: available on request (redacted from public issue)
Invoice number: EBMIFEW5-0002
Date: August 12, 2026
Amount: $105.00 USD (status: open, unpaid)

What Should Happen?

No invoice should be generated for a product I never purchased or interacted with. If generated in error, it should be voidable with a clear, confirmed timeline, and the account holder should not have to independently determine (via a third-party tool) whether an unrecognized charge was processed.

Error Messages/Logs

Steps to Reproduce

1. Have an active Claude Pro subscription on claude.ai
2. Check billing/invoice history on the account
3. Observe that an invoice for "Gift Max 5X - 1 months" ($105.00) appears, dated August 12, 2026 — a product never purchased, selected, or interacted with
4. No corresponding action (checkout flow, gift redemption, plan change) was taken by the account holder to trigger this invoice

Claude Model

None

Is this a regression?

Yes, this worked in a previous version

Last Working Version

_No response_

Claude Code Version

N/A

Platform

Anthropic API

Operating System

macOS

Terminal/Shell

Terminal.app (macOS)

Additional Information

_No response_