While In-Game Customer Service is unable to intervene in guild management affairs in any way, guild members have the ability to initiate a guild leadership vote in cases of leaderless guilds so the remaining members themselves can elect a new leader.  If you are a guild Officer, you may now use the command /initiate_guild_leader_vote to initiate the guild leader voting process if your guild does not currently have an active guild leader (no leader has logged in within 60 days).  Anytime during the voting process, if a leader logs in they can cancel the voting process using the command /cancel_guild_leader_vote.