Got an email today from UA that my CZM trip later this week. The email subject line said "You've successfully cancelled your reservation". A bit deceptive as I did not cancel, they did. When I look online under my cancelled trips it says "this reservation has been cancelled. To use any remaining value towards a future flight please select the button below." The only button that shows is to select the future flight credit. I filed for an online refund and stated my plan to file a DOT complaint if I do not see a refund on my credit card in 7 business days, and also attached a copy of the DOT letter I plan to submit. I also stated I would file a chargeback on my credit card. Not holding out much hope, so we'll see what they say.