https://oig.dc.gov/sites/default/files/webform/rafp_online_complaint_form/_sid_/Priceline%C2%AE-usa-contact-numbers-the-comprehensive-guide.pdf
https://oig.dc.gov/sites/default/files/webform/rafp_online_complaint_form/_sid_/expedia%C2%AE-usa-contact-numbers-the-comprehensive-guide.pdf
https://oig.dc.gov/sites/default/files/webform/rafp_online_complaint_form/_sid_/expedia%C2%AE-us-contact-numbers-an-ultimate-guide.pdf
https://isitwork.com/listing/talk-to-someone-at-pricelin%f0%9d%93%ae%ef%b8%8f%ef%b8%8f-usa-contact-numbers-the-official-guide/
https://isitwork.com/listing/booking-com%ef%b8%8f-customer%ef%b8%8f-usa-contact-numbers-a-detail-comprehensive-guide/