Good luck! I tried back in October since our AC flight back to Santiago (and on to Toronto) was delayed for 18 hours and UA (AC's handling agents in EZE) had rebooked those few of us only going to Santiago onto LAN.

It was on a Sunday and the Centurion Club hostess couldn't have been more rude, ignorant and totally unaccommodating. She refused to call anyone for assistance. Finally gave up arguing with this idiot and used my Priority Pass to enter UA's Red Carpet Club.

When we got home, contacted Amex Canada about the issue. Indeed, this "princess" at the EZE Centurion Club was wrong! Amex refunded my Priority Pass charge at the Red Carpet Club and I filed a complaint against the prima dona at the EZE Centurion Club. I have never heard back from the Club's manager, and considering the arrogance from a certain sector of the Argentine population, I won't likely ever hear the word "Sorry".

I was so put off my her ignorance that I can only assume that she must have previously been a Flight Attendant with Aerolineas Argentinas. I won't go near the Centurion Club at Ezeiza ever again!

I'm writing this from the newly open (December 2012) Centurion Club at Toluca Airport Mexico...clean, modern and staffed with very friendly and helpful personnel! What a very pleasant experience dealing with each and every Centurion Club in Mexico!