The easiest way to comment on a question (or an answer) is to click on the ‘Disagree’ button that will appear on the web page when reviewing a question where you got the answer wrong. In the comment form, please explain why you are disagreeing. Submitting this form from the ONtrack site itself tells us automatically which question you are referring to and who you are (name and email address).
You can use ‘Submit a request’ to send us feedback from this PhP support site page. This alternative option is more suitable for technical or subscription matters, or issues not connected with a particular question. If you do, however, use this method to send in comments on a specific question, please be sure to include its unique reference number, which can be found underneath the question, so that our reviewers can identify it correctly.