At least the hotel knows you are expecting the $100 and has agreed to pay it if they dont honor your bed type.They also now that you know your benefits as a platinum. Be sure to keep the emails on hand at check in. They may be sold out on 2 doubles but there's always cancellations so i think they will keep tabs on that so they dont have to pay you. Also they may just end up upgrading someone else thats not a plat or gold to the suite so they cant claim the 100.