I am guessing then since that bidder was a possible scammer then you will not be able to get paid? If that is the case, I am sorry to hear that you will not be getting paid.
He can offer a second chance bid to the next bidder down the line or in this case maybe two. There was a more "realistic " top bidder before things got out of hand.
I'm not sure what the time limit is on payment vs second chance offer. I'm sure those are on the policy page.