I had to laugh.
Exascot, you are dealing with a cultural mentality perfectly illustrated by the poster who replied to your first entry. Both in name and manner, this champ exemplifies the head-bobbling fools who comprise the majority of both EK's staff and passengers. The entire modus operandi is to avoid responsibility and of course, any sort of effort whatsoever. To that end most of the staff at Emirates' Group Headquarters spend most of their day emailing and endlessly cc'ing each other back and forth, desperately trying to avoid actually DOING anything. If it makes you feel any better, at least you don't actually work for the company and have to deal with the asinine on a daily basis.
So no, you will never get a response to your inquiries, as it's easier for EK just to take the fare from the endless teeming masses.
They don't care because they don't have to. Good on the purser for actually trying to resolve something, he must be new enough to still think he can actually achieve something.