Update to my issue above-
They sent an e-mail denying the price match saying that prestigia.com was "inelligible" for the price match program.
I respond asking what made them an inelligible site.
They responded saying that their terms did not match Hilton's.
I had enough with the games so was ready to cancel my reservation. I responded "OK, thank you. I will cancel my reservation." Literally my response was just those 8 words.
Today I got an e-mail saying that there was a mistake and prestigia IS ellibible and they are matching the rate plus the 25% discount.
Bravo for Hilton for following through on their promise of matching the rate. Kind of silly to have to play a game to get the match though.