Originally Posted by
mybodyismyown
As mentioned above, fully 9 out of 10 United employees will absolutely shut you down and refuse to help with this problem. I don't know whether it's that these people are lazy, or if they just have a completely false belief that TSA runs Pre-Check and therefore they as United employees can play no role in getting your Pre-Check information associated with your United reservation.
The reason most UA employees won't help is not because they don't want to help, it's a combination of having to use a POS IT infrastructure and a management team that has steadily and firmly limited the discretion of front line employees to do their jobs properly.