Questions, bugs or trouble with players? In the "Support" tab you create a ticket in a category (support/question, report a bug, report a player, other). Staff replies in the ticket's chat history and in your mailbox; you can answer right there.
Templates: every category has template fields that help you write it (e.g. grid square, time, players involved).
FAQ suggestions: if your text matches a common question, an answer shows up right away – maybe that already solves your problem.
Screenshot link: optionally attach a link to a picture (must start with http:// or https://, e.g. Imgur, Discord, Steam).
Response time: the form shows how fast staff usually answers at the moment.
Rating: after the ticket is closed you rate it with 1 to 5 stars.
You report players with a "Report a player" ticket – or right after your death with the report button in the death summary.