<human>: A few friends and I teamed up to bid on a raft the local university had put on auction from their outdoor recreation department. We were notified on the day of the close of the auction that our bid had been chosen. The policy of the auction clearly states that "All sales are final."

My friend phoned in his credit card and had 6 different conversations, by phone, e-mail and in-person. He even got a receipt for his payment in full for the winning bid.

Later, a supervisor from the university property department called and said there had been an error and someone else had a higher bid. They are going to void the transaction. We are kicking ourselves for not picking up the raft immediately, but we needed a pickup truck and a couple people to haul it, which we were going to do today. Instead, the university says they are going to refund the money and put the raft up for auction again. We told them we don't want the refund, we want our raft. What are our options?

Give me the gist of the text in a nutshell
<bot>: bought a raft at an auction that had an all sales are final policy. Seller now wants to back out of the transaction.