when I origiannly booked it was with DCL air and transfers. when I called to change to day before and add hotel they attempted to add me to the Hyatt as that is the one they used. But I was told the block of rooms they had for that date was already taken and I would have to find myself another place. I did wind up booking Hyatt myself, same date and $20 cheaper than if disney did it.
I believe they always do use the Hyatt as their busses are already there and they don't have to worry about moving people any extra times. I know we were in the Hyatt.
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