If you win an auction, you're obligated to pay what you bid unless auction rules state otherwise. Try to see the difference between events happening during the auction and after the auction. While auction is running, your bid may be outbid by anyone. Getting outbid is not unfair. When the auction ends, highest bid wins.

Reminding again: this discussion is off-topic in this thread. Let's give Vod some space to reply to the questions.