Hilton Hotels & Resorts review: Priceline.com reservation provider for Hilton

I was attempting to make reservations for TRU by Hilton in Smithfield I-95 throught Priceline.com for Oct. 1 thru Oct. 9. When securing the reservation something went wrong and I had a reservation for Sept. 30 only. Since it was for the wrong day i made contact with Pricline.com to change the dates. I was told it was necessay to first cancell the reservation. I was assured of a refund. When I tried to secure the new reservation I was unable to do so and received a n e-mail saying it would take 48 hours to verify. I continued with reservations through Expedia.
I have since been told that Hilton refused the refund because I did not get a refundable reservation.