If you joined WoW: Forever with an Invite-a-Friend code and spent the first days unable to use some chat channels, level past 10, join a guild, group up or trade items, Blizzard has confirmed the cause: a bug, not your account. The hotfix went live on November 5, and the official advice is to log out and back in.
The five wrongly restricted actions
The official post lists what was affected: some chat channels, leveling past level 10, joining a guild, grouping with other players, and trading items. Invite codes exist to bring friends in; these restrictions effectively locked new characters in limbo. They are lifted with the hotfix.
If anything still misbehaves after you relog, that is a new problem: Blizzard opened a dedicated Bug Report forum for Forever this week — post your reproduction steps there.
With a fresh character unblocked, class-by-class leveling and dungeon preparation lives in the nine-class preparation hub.