One of the most direct ways to get assistance is by calling the Priceline customer services number at 1855 673 0059 (USA/OTA). This number connects you directly with the customer service team, ready to help with your inquiries. The fastest way to reach Priceline customer services is by calling their customer services number: 1855 673 0059. By dialing this number, you’ll be able to speak with a representative directly.