question on bidding for upgrade
I have a RT from SFO To Venice in the fall booked in Premium Economy booking class N,(I think)
I am being told by L that I can not bid up to business with this booking class.This is a fare that is refundable minus a fee. It was not the cheapest PE fare. I had watched the fares for a while and when the 365 days window opened, I booked it. the lower fare that I had been watching was not available.SO do you have to buy the most expensive PE fare to bid?
So why can I not bid? I seem to recall people coach can bid for C. If someone can explain this, I would appreciate it.