booked a ticket on AC, for united metal, just noticed that my reservation was cancelled. There was zero warning. (everything should be kosher, it was in my name both accounts). I had a res booked on my wifes account holding a reward in united miles but it was without my mileage info, and i never got the usual warning email that two overlapping reservations will be cancelled. just noticed now that it does not exist. It happens to be united is showing the rates that should make it available on AC but its not coming up. Any idea what to do? travel is sunday