My flights for Friday weren't upgraded until yesterday - no email, etc. Then I received 1 email yesterday morning saying that both were upgraded. Next, I received 3 emails stating that I had already upgraded or purchased first class. I also have 2 flights on Sunday that I haven't received an email about, yet. And, when checking my intin online, I'm still sitting in Y. I may call later tonight...after the STEELERS WIN!
But, back on topic. I think something is a little wonky with the UG system.