DanfioContact
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One inbox, read by a person: contact@danfio.com. It opens your email program directly. Prefer a start here? compose a message with the subject and fields pre-filled.
What gets a fast reply
- A wrong number. Include the tool link, the exact inputs you used and the result you expected, with the source for the expected figure if you have one.
- A missing assumption. Local tax rules, insurance conventions and market-specific fees differ by country; tell us which market the tool gets wrong.
- A tool request. Describe the decision you are trying to make, not just the formula, so the output can be shaped around it.
- Advertising, licensing or press. Mention the site and what you need from us.
What we cannot do
We cannot give personalized financial, tax, legal or medical advice, review your loan documents or recommend a specific lender, insurer or provider. Messages asking for a personal recommendation will be answered with a pointer to the relevant calculator and a note to consult a licensed professional.
Response time
Corrections to a formula are handled first, usually within a few days. Feature requests are queued and prioritized by how many readers ask for the same tool. We do not run a newsletter, so there is nothing to subscribe to.
When you will hear back: every message is read by a person, and we reply within 2 to 3 business days. Most answers go out faster, because the person who maintains the tools is the one answering the inbox. If you are reporting a wrong number, include the tool link, the exact inputs and the expected value up front, and the fix starts on the first read rather than after a round of clarifying questions. Rights requests (see the privacy policy) and accessibility feedback follow a separate 30-day commitment, and are usually answered well inside it.