I doubt that we'd (Clan Plagueis) let an Arconan into Cafe di Plagia and ultimately the Dark Tower, without you being a Plagueian yourself. Xathia, being a Scholaen, is more understandable due to the Clans' alliance with each other. You mention an infiltration mission, and this is 1) Not in any records that we know of and 2) Unbelieveable due to the fact that we'd sense you in the Force.