Originally Posted by
Often1
I would call UA post haste. This has the makings of an inaderdent cancellation or no ticket issue.
I have had this happen a few times with the PmUA. It was usually somehow connected to my MP Visa Signature. I always had to show my CC at check in to "unlock" my reservation. After inquiring in great depth, I was told the same thing by multiple people. That it is random and you get chosen every now and again. So, could be this as well. As with other comments, do agree to get on phone to UA post haste.