To get a refund with the help of Expedia customer service, you need to call its customer service representative at 1-800-EXPEDIA (1-800-397-3342) or 1-844-643-3377 (real person) and then provide the reference code of the canceled Expedia reservation. After this, you need to request to apply for a refund from Expedia. Once Expedia approves your application for a refund, you will get notified through SMS or email.