On DL17 ATL-LAX-SYD, if you are booked the entire way through, you cannot be added to the upgrade list, even for the ATL-LAX segment (I'm Platinum Medallion) to try for the upgrade. I've called multiple times and each time they try and manually force it, they can't. They talk to other people, and they say it's a programming issue. FIX THIS!

DL17 ATL-LAX is a domestic leg, not an international. SPlit up the reservation/PNR so I can select 2 seats based on each flight, not 1 seat for the combined availability of DL17 ATL-LAX plus DL17 LAX-SYD.

THIS IS REALLY ANNOYING.