[Suvuseh]

.....and not being willing; or, able to comprehend the compounding errors of his ways, little Billy gathered up all his marbles and stomped away......Hey Billy, don't let the door hit you on the way out!

It's not the mistake that you made, it's the way you chose to handle it after the fact, that we find appaling and unscrupulous. The plant was won on auction at a price that you approved when you set up the auction. The deal was done....period. The bidder was very pleased, as he should've been. He'd done everything right and won the plant fair and square. He dealt with you in good faith. You need to honour your commitment to the winning bidder; learn your lesson about how to run an auction...and move on. Don't screw the bidder because you've now decided that you deserve more money.....not if you want to be respected.