When I was 12 or 13, I was the whatever-number-caller to a radio station. The DJ told me I had won an album, but didn't say who the artist was. Turns out it was The Lennon Sisters. I was so disappointed (this was in 1967).
Recently I won a pasta dinner from a restaurant. I picked it up, brought it home, and when I got home I had a voice mail from the manager. He said they prepared the wrong dinner for me and that I could come in and claim another. So, I got two dinners which would have cost me $56.