I got 2 of them for $350 each from UA switching the 772 with flat beds to the old bacarlounger seats. Today, tried to book online and used the certificate, the computer would not accept it.
Called the 1K line and now after 36 mins, the nice agent still cannot finish my reservation and apply the RPUs...
And I was told that once you use the certificate, the computer won't give you back any risidual amount.
39 mins and still counting for a simple reservation IAH-DCA-IAH