Guildleader disappeared...

Hello, I've been filing a ticket with EA Help, restarted the ticket twice already, but they keep answering that they cannot do a thing about removing our inactive leader or simply replacing him: they say some functionnalities were removed by the backend team, and that they notably can't do that replacement anymore...
They insisted on the fact that I should plead my case here.

So, what should be my next move?
Of course, I'm an officer in my guild...