I have a prepaid receipt. It is for 4 nites. I only want to stay 3. What do you need to confirm?

I would call Hilton and get the answer directly from them.

Call them but I'm pretty sure they won't give you money back. They will spout off something along the lines of this needed be be cancelled so much time in advance or something.

I would call them and see if you could negotiate and refund or maybe tickets in exchange for the night you aren't needing.

You can stay 3 nights of the four, but you won't get a credit for the unused night.

Yea what everyone else said. I assume you have 48 or 72 hours to cancel before you're charged.

Call who you set up the reservation with

Contact Reservations

Call Hilton