AARP EXPEDIA TRAVEL

I'm done with AARP and Expedia. For the second trip, my TSA Pre check number was missing from my boarding pass. I shouldn't have to double check every time I book a flight that the number was carried over. If that's the policy of Expedia then why ask for the number at all. I went through the security check and met with a federal agent for the convenience of passing up long security lines. It's infuriating to get to the airport only to discover I'm going to be stuck in the main line and will have to remove my shoes. I PAID FOR THIS!!!  I think Expedia should pay every passenger $10.00 for missing the pre check on their boarding pass. That might incite them to make sure their system is working. In my case, it won't matter. I won't be using the service or membership anymore.