Ticket was purchased through VS and 932 ticket stock, on Economy Delight (V) in September. It was reissued by VS multiple times (presumably because of schedule changes), but the VS flight numbers stayed the same.
This is the last receipt I received from VS on 9 November.
I called VS and they said their ticket was kept the same for all classes until day of departure, then JFK-LAS was switched from VS V, to DL S (C+) to DL OL, which the DL system interprets as VS O.
However, I pull up my SkyMiles receipt and it shows the following, with class "V" and DL flight numbers that match the VS ones. The first two legs are crediting properly as VS V.
My original boarding pass shows the 932 ticket stock, ending in 0732, with Class V and VS flight numbers (VS3011).
I had called in day of departure for JFK-LAS to see if I was on the Medallion Upgrade List. No, the phone agent said. I asked to be added and to use an RUC if able. The phone agent added me to the Medallion list, and that an airport agent needs to finish off the job for the RUC.
I head to JFK, ask about the RUC to an agent. They said no, unable to apply it since it was a VS-marketed flight and I was misinformed. They stated that I was on the Medallion list and we ended the conversation there. No access to the upgrade list on the App and the gate at T2 did not have the regular upgrade monitors, so I just boarded with the rest of C+. When I scanned the BP, I received a receipt moving me to FC for the JFK -> LAS leg.
The DL agent is referring to OL as my fare booking class for JFK-LAS (which leads me to assume the RUC was used after all) and says I should actually be credited 5% MQD on the whole trip (based on VS O) and that I got off easy on this one and should drop it, followed by stating that "I don't have the original receipts" from DL or VS(?) and to stop "reaching at things I cannot see" and that only he can. He ended with a tirade on how I tried to one-up a phone supervisor with "15 years" in the business. I hung up after that.
I'm $179 away from Platinum and should have been over the hump with the last leg.