I hope someone can shed some light. about 2 months ago, I was ticketed on a return segment DSM-DEN-LAX in H. Around T-16, I went online and tried to do a same day change. There was a V class available DSM-ORD-LAX leaving earlier and a difference in fare of about -$130. The system wouldn't process the change so i called 1K web support and they processed the change for me. The agent said UA will "mail" out an electronic cert that I can use for the $130. he verified my home address and went ahead and reticketed. The next day when I showed up about 3 hours early for my ORD flight, the check in agent said ORD was experiencing massive IRREOPS and that my flight would be about 4 hours late missing my Cxn to LAX. She rebooked me on to an earlierDEN flight and I got home way earlier than my original changed flight.

So it's been about 2 months and I have not received this e cert. the web support agent gave me a pin and a number if I wanted to use it before I receive the cert. unfortunately, it was saved in my iPad which a fA managed to spill a whole cup of red wine on during another flight. That's another separate story.

anyone have any experience with this new SDC and getting back a difference in fare???

Thanks in advance!