Live chat: the Chat page in the client, Support in your website dashboard, and the Linux web UI. Support replies in real time when online.
Tickets: for issues that need follow-up. Describe the problem (at least 5 characters); attaching logs helps. Ticket statuses: open, in progress, replied, closed. Closed tickets can be reopened.
Command line: cnb ticket new --subject "Connection fails" --content "…"
When asking for help, please include: your OS and version, connection mode (PAC / explicit / TUN), the site or tool with the problem, when it started, and exported logs.