Contact
A mistake in a formula, a question, a correction request: an email is all it takes.
To get a quick answer
- For a calculation error, include the page, the values you entered and the result you expected, plus your source if you have one.
- Brands offering a product: every review says where the product came from, and no brand reads a review before it goes up.
I keep your message for as long as we’re talking, then a year at most ( privacy policy).