Use UOR online chat. I did yesterday and they replied within minutes with the ‘new’ expiry date.I'm not even sure where to look online to see when my pass expires. I just know that it's supposed to expire on that day.
My daughter got an extra 6 months too. I bought my AP when they were running the 6 months extra free offer, but a condition was that it had to be activated by April 2019. I didn’t activate it until September 2019 but they added 6 months plus an extra 3, so 9 months in total to my pass. I even (honestly) queried it, but they maintained the 9 month extension.Just got off the phone with Universal - it took me about 20 minutes to get through. My pass (2-park, Preferred, if that matters) expired on May 14, when the park had been closed for 2 months, and has been extended until August 14, so I was given an extra month in addition to the time the parks were closed.