Correspondence
All correspondence:
Monday to Friday, 09:00–18:00 (UTC−3). Replies are sent within two business days. Messages arriving at weekends or on Brazilian public holidays are answered on the next business day.
What to include in a message
A single message with the relevant details attached is answered faster than a series of short ones. Useful details differ by enquiry:
- Editorial or source queries — the article title and the passage in question.
- Corrections — the article title, the passage, and a citation to the source that establishes the error.
- Billing or refunds — the transaction date, the amount, and the descriptor that appeared on the statement.
- Data protection requests — the nature of the request and any identifiers that would allow the relevant records to be located.
- Technical faults — the page address, the browser, and the device.
Common requests
- Refund of a purchase made under this brand within the 30-day window — see the refund page.
- Access, correction, deletion, or portability of personal data — see the privacy notice.
- Permission to quote or reproduce an article or figure.
- Notice of a broken link, a rendering fault, or an inaccessible page.
What the desk does not handle
Some requests fall outside what this publication does, and a message asking for them will receive a short reply saying so rather than an answer:
- Advice of any kind — professional, medical, psychological, legal, or personal.
- Assessment, diagnosis, interpretation of symptoms, or recommendations about any individual situation.
- Referrals to practitioners, clinics, or services.
- Guest posts, link exchanges, sponsored placements, and unsolicited commercial offers.
Interference is not a crisis service and is not monitored outside business hours. Urgent matters should be directed to local emergency services.