Expedia will work with the Airline to find you a similar Flight, then notify you through its app, by email, or by text. For urgent (for example, same-day) changes, they may also call you. You can contact Expedia customer service with questions if you don’t hear from them in a timely manner after being notified of the cancellation. https://www.oranjo.eu/c/tech/366833/refund-will-expedia-give-me-a-refund-get-refund-instant