The billing page in settings used to hold three unrelated things: the documents you agreed to, your plan, and a form for telling us something was wrong. It now holds your plan alone, and the page and its settings link are named Billing to match.
The terms of service and privacy policy are still published and still linked from the footer of every public page. To tell us something is wrong, use the Feedback button that sits on every page, which reaches the same people who read the form this replaced.