I had $2200 dollars worth of credit in the form of voucher from expedia, which was expired June 10th this year. I never received this voucher when it was issued last June 10th, so I called last last December to locate it. The representative was unable to locate it, or even pull up the flight information associated with the credit. So I called American Airlines to find the associated flight information and the voucher number, and only then was expedia able to locate my credit. However, it is past the expiration date of my voucher, and expedia is telling me that I can no longer use the credit. I demanded my credit back because it was due to expedia's inability to locate my credit that I couldn't use it before it expired. Now the manager is telling me that when I called last December regarding this matter, expedia's records indicate that the representative confirmed the existence of the credit but could not locate it, and that I was told that I could use the credit back then. I am 100% sure they could not confirm OR locate my credit and that I was not told that the credit was usable in December, so I asked them to show me the recording of the call in December, but the manager refused to show any sort of evidence. She is clearly lying about me being informed that I could have used the credit in December, and therefore my argument that I should get my credit back because it is not my fault for expedia not being able to locate it before it expired. Can I sue expedia regarding this issue? How can I make expedia reveal the call recording to show that the manager is lying? Should I seek professional help?