Zandronum

So, a few days ago, I joined a Complex Doom survival server from Doomseeker. My ping was quite bad, so I disconnected after about 1 minute. And I get a message that I was banned from Zandronum masterserver. I also don't see my IP at Zandronum Master Banlist. I don't think I could be caught in a range ban, because as far as I know, my IP isn't dynamic.

So, could the Zandronum staff unban me, or if I was legitemately banned, tell me reason of the ban and how much time left till the end of my ban.