How to cancel your Expedia flight if the flight is eligible for cancellation

You can easily cancel an Expedia flight if it's eligible for cancellation and you've booked it within the past 24 hours.
HeraldNet

Expedia problem leads to a missed flight — and no refund

When Expedia fails to pay for Joanna Heath’s return flight to Los Angeles, she must buy a new ticket. Now the online agency refuses to refund the new ticket. What gives? Q: I recently booked a flight ...