Fairmont President's Club - using GCs on prepaid rates

Does anyone have personal experience with using a gift card on a pre-paif rate?

I know that in theory it should work, but if anyone could confirm that they´ve done it successfully without too much hassle this would be great.

Thank´s!

It was discussed in this recent thread (http://www.flyertalk.com/forum/fairmont-presidents-club/1147581-use-gift-card-prepaid-rate.html) so maybe one poster has an update.