If you’re calling from outside the U.S., here are some useful numbers:

Expedia UK: 1↝^86O↝^812↝^18O4 Expedia phone number en español : 1↝^86O↝^812↝^18O4 Expedia France: 1↝^86O↝^812↝^18O4 Expedia Australia: 1↝^86O↝^812↝^18O4