Hi!
Just to share my experience, my bid from PE (N) to C for flight LH 507 (GRU - FRA, on Feb/7th, 7:45 PM) was just successful. I bid 575 EUR and the bid range was 535 to 1030 EUR.
I have just received the e-mail from LH, that is, more than 48 hours from flight departure.
There was at least 20 seats available on C, which means that it was perhaps easy to upgrade me.
I also think that I heavly overbid, since just after My Offer was closed, I checked the status of my bid and I noticed that the minimum bid droped, perhaps to less than 500 EUR (my bid was then at the middle of the range bid)
