How to get into the fnatic club in THE FINALS

Hey guys, I've been playing the finals since the very start of season 3 and the grand major had me thinking, huh, fnatic plays the finals? Ever since tgm25, I've been trying to get into the club. If someone could get back to me on this, id be thankfull because id have to leave my current club. I cant join a club if im already in one. Thanks guys!