Noob question, as I've never worried about bidding for an upgrade before. But I have flights coming up booked in J HKG-MEL-CBR and at the time of booking it said the MEL-CBR leg was in Y. Not a big deal, I assumed J was already full for that flight. But I just received an email saying I could bid for an upgrade to J. I'm tempted to call up and ask whether we could be put in J given I paid for a J fare. But maybe the fare I paid was slightly cheaper due to that last leg being in Y and so then I have to bid like everyone else.
Has this happened to anyone else? Any advice much appreciated. This is my first adventure past Y.
EDIT: Okay, I'm learning new things all the time. I called up VA to ask, and the reason why that leg at time of booking was in Y was because there were no J saver seats (I purchased J saver fare), and there still aren't, only the next fare up seats. Makes sense. And the call centre person was lovely, so that was a bonus. I'm not worried about being in Y for that last leg, it's such a short trip, I was merely curious.