Los Angeles resident Cara Viramontes is accusing Expedia of cancelling her travel plans and writing her a message with the phrase 'f**k you!' which she suspects is related to a negative review she had given to the travel site.
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On 17 October she posted an account of the incident on Facebook saying: "I went to look online at my itinerary and saw the words 'f**k you' from Expedia and right below it, it said 'flight cancelled'.
She also included what appears to be a phone screenshot of the website where the offensive phrase was posted.
Viramontes wrote that she ended up speaking to a man in the corporate office who didn't address the foul language but he did tell her she would be charged $200 to re-book the flight.
She went on to speculate that the email and retaliation were in response to a negative review she had submitted about a prior customer service issue.
Since then she posted an update to Facebook saying her original itinerary has been restored and Expedia have offered her an additional travel voucher.