This is the fraud line for Priceline. My credit card company called me before Priceline did, so I was aware there had been a fraudulent charge. Priceline verified the last 4 digits of my card (only) and confirmed I didn't make the reservation. They are attempting to cancel the reservation and refund my card.
The person who called from 2034418455 said he is calling from priceline regarding the credit card fraud. That is strange coz why they would call, it should be the credit card company.