A Southwest Airlines passenger filed a lawsuit for receiving a credit instead of a refund

A Southwest Airlines passenger filed a proposed class action lawsuit against the airline on Friday, claiming the company did not return passengers' money despite thousands of canceled flights.

In the lawsuit, Eric Capdeville says he purchased tickets for himself and his daughter for flights from New Orleans, Louisiana to Portland, Oregon, but upon arrival at the airport, he was told his flight had been canceled.

Capdeville was offered a credit for use on a future flight after Southwest Airlines was unable to book him on another flight.

Southwest Airlines is in violation of section nine of the Contract of Carriage which states if the carrier cancels the flight due to service interruption, they must transport the passenger at no additional charge on the carrier's next flight.

The lawyer for Capdeville did not reply immediately.

Southwest canceled 5,400 of its flights in less than 48 hours as storms raged across the South and Midwest.

Southwest canceled flights and did not resume normal operations until December 30. The company has been under investigation by the U.S. Department of transportation.

In a letter to Southwest's CEO, Pete Buttigieg said the airline's disruptions were "unacceptable."

Jordan apologized in a video that was posted on Wednesday. Jordan was optimistic that the company would be on track before next week.

There are several high priority efforts underway to do right by our Customers, including processing refunds from canceled flights, and reimbursing Customers for expenses incurred as a result of the incident.

She didn't answer questions about refunds to credit cards instead of airline credit. People can visit the travel disruption page for more information.