To escalate an issue with Expedia (1-801 337 7888), start by contacting their customer support through the Help Center, either via live chat or phone. If the initial representative cannot resolve your problem, politely request to speak with a supervisor or have your case escalated. Be prepared to provide your booking details (1-801 337 7888), previous case numbers, and a clear explanation of the issue. Keep records of all communications for reference. If your concern remains unresolved, you can submit a formal complaint through Expedia’s feedback form or reach out through their official social media channels for further assistance.