When I used to work in IT for Amex in Brighton, I used to help out in the Centurion Card department which was housed in a separate building since the IT admin there was fairly clueless. It used to be funny to hear some of the stories of clients who would call in - clients would usually have particular customer service staff who they would solely deal with, and there would be all kinds of requests. Things like a celeb calling in asking the Amex staff to arrange tickets for them at a London theatre - it was almost like they had their own Personal Assistants at the end of the phone as a benefit for having the centurion card.
You have that in Platinum too, its called 'Concierge', very handy as it happens too