Before You Open a Ticket
A few common questions are already answered on the FAQ and Features pages, including which client apps support AnyTLS, how the Taiwan 0x-multiplier nodes work, and how routing is tuned for China Mobile, China Unicom, and China Telecom.
If you're setting up a client for the first time, the Get Started page walks through the three steps — getting a subscription link, importing it into a compatible client, and choosing a node — along with a breakdown of which app tends to work best on which device.
For anything specific to your own connection, such as a particular node feeling slow or a client failing to import your link, a support ticket is still the fastest path, since the team can check live node status on your behalf.