Expedia.ca
Expedia took for money and won't give it back

I paid for and booked a hotel for a week through expedia.ca. The next day I was e-mailed from hotels.com saying that even though I paid for the week that the hotel was over booked they couldn't honor my reservation for the entire week. So, I went and stayed at my expedia reservation for 2 days and then check out because they were over booked. When I got back I phoned expedia looking for a refund. They said I couldn't get a refund because I didn't call them. Even though it is not my fault, expedia is keeping my money.
Is there anything I can do?

Company: Expedia.ca
Country: USA

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