Last year, I flew on United but my flight was cancelled. I received 2x $200 USD travel certificates / vouchers / gift cards. I just remembered I still have them, and they will expire in two months:
$200.00 certificate: "Expiration Date: 8/14/2015" -- AVAILABLE
$200.00 certificate: "Expiration Date: 8/7/2015" -- AVAILABLE
I'm selling these two gift certs. They can be used online on United.com, or at a united ticket office. You can use the certificates to buy flights that's more than $200 usd, you will simply have to pay for the amount exceeding it. You cannot use two certificates in the same purchase.
Below is the screenshot of one of the cards:
https://i.imgur.com/opE5pNd.pngPrice$110 USD for one cert (or $210 for two!).
We can use any trusted escrow.