I cant see their discord anymore when I join the server

how do I do that?

I got banned unfairly on Dubblez server,maybe because I was doing really good against vizzion is op,he probably banned me just because I was getting lodestar,how do I get unbanned? I didnt cheat or anything.

Dss0 I did and still did not work.I refresh and refresh ,and nothing appears on the servers list,how do I fix this?