Contact customer support at Expedia by calling 800-397-3342. The number is toll-free and operators are available 24 hours a day. Use the automated voice system to direct your call to the correct customer service representative by pushing the number on your phone's keypad that corresponds with the correct selection.
Visit the Expedia website (expedia.com) to send an email to Expedia. Click on the "Customer Support" link at the top of the page and click on "Send Us An Email" under the "Three Ways to Find Answers" link. Fill out the online email form with your personal information and comments, and submit your email to Expedia.
Write a letter to Expedia with questions, comments or complaints and mail it to:
Expedia, Inc.
333 108th Ave. N.
Bellevue, WA 98004