When we create a new topic to request something about the catalogue, all checkboxes have a link to the related help, except request about issuing entities (red circle). I assume the help article to link is https://en.numista.com/help/add-or-modify-an-issuing-entity-in-the-catalogue-193.html
Requests about coin, banknote and exonumia also do not have a help link (pink circle), but in these cases there are not dedicated help articles (I think!).