Hey, same here, I guess you're playing on Xbox or PC via Xbox store.
Since the 29 november they disabled all Windows clients from joining crossplay official PVP servers, because of some bugs with BattleEye and security. They said "resolving theis issue early next week", so early december. We're at the end of december and it's still not possible to join official pvp servers.
I think I'm gonna ask for a refund with Xbox and buy the Steam version.