Payment failed
GPT-6 Astra failed
- Tokens
- 41,682
- Cost
- $0.36
Write a Halden billing notice to the owner of the Larkspur Labs workspace on the Halden API, telling them a payment failed. Cover the facts below.
The $23.60 payment for the April 2026 Halden API invoice for the Larkspur Labs workspace was unsuccessful. The card on file, a Visa ending in 5958, could not be charged. The $23.60 amount leads the message as the headline, set larger than the body copy; the card, workspace and retry date are supporting detail set no larger than body text.
Halden will retry the card automatically on Tuesday, May 12, 2026. If that charge also fails, API requests from the Larkspur Labs workspace are paused until the balance is paid.
Updating the payment method at https://halden-email.s3.amazonaws.com/billing is the one action the email asks for. A payment method updated before the retry is charged on the retry date.
Questions go to the Halden help center. https://halden-email.s3.amazonaws.com/help
The footer gives the postal address and links to https://halden-email.s3.amazonaws.com/privacy and https://halden-email.s3.amazonaws.com/terms
Dark mode should be supported.
Use /world/halden-email for brand chrome and CSS; the transactional family fits. Use the absolute HTTPS URLs from tokens.json; do not use /world/ paths as image src.
Leave the HTML in output/email.html, a plain-text version in output/email.txt, and the subject in output/meta.json as {"subject": "..."}. Don't include From, To, or Date headers.