Autmobile Auction live feed recovery

New guy here. I have a an issue regarding live feed recovery. Let me explain- Yesterday afternoon I attended an on-line Automobile Auction where they have a camera set up at the auction house where bidders receive a live feed and can view and bid on vehicles as they go thru the auction, lot by lot, in actual time during the auction. I participated in the auction as I often do and bid on 4 or 5 vehicles but I only won 1 vehicle that I was bidding on. Today I received an email from the Auction house with an invoice attached. Getting to the gist of the invoice, I quickly went to the "Charges" column on the invoice so I could get the total dollar amount due. The total amount was correct according to what I had bid on said vehicle. As I went to handle to payment for the vehicle, I noticed at the top of the invoice, that the vehicle stated was incorrect. It was a bill for a completely different vehicle than the one that I bid on. Certain of what vehicle I had bid on, I called the Auction house and spoke with the accountant. I told her that they billed me for a vehicle that I did not bid on at any time whatsoever. I stated that the dollar amount was correct in that the bid I had placed that won the lot I bid on was right but that I bid on a different vehicle than what was listed on the invoice. I am certain that I won the bid on the vehicle that I was bidding on and certain of the year , make and model of the vehicle .The fact that I left the tab window open, on my laptop ,showing that vehicle , so I could show my wife the car that I bought for her. when she got home from work later that afternoon confirms that fact. The web page showed a picture of the vehicle with a visual alert underneath stating "Won!" highlighted in green. She approved of the vehicle that I had won and was pleased about the purchase. After we had dinner together and a short time later before going to bed for the night, I closed my laptop and turned in. TODAY however, after receiving the invoice and seeing the mistake, I called the auction house and explained the problem. The accountant asked me what the lot number was of the vehicle that I had bid on and won. I didn't know the lot number because the Lot number is typically something that I pay attention to because I am always fully aware of the year, make and model of the vehicles that I bid on. I told her that I would have to go to their website and access the auction inventory from yesterday to find the lot number. Which I did as we were speaking over the phone. I quickly found the vehicle again and gave her the lot number. Except TODAY it showed the vehicle that I bid on as not reaching the minimum amount that the consignor would accept and due that fact that the lot was "passed" and remained un-sold. And NOW it showed that I had won a completely different vehicle with a lot number that wasn't even close in numerical order to the vehicle I had bid on and that was stated as "Won!" earlier today or the for entire evening the night before!! There are certain makes of vehicles that I prefer and target while attending these auctions and I wouldn't even consider bidding on the vehicle listed on the invoice they sent me. THERE IS NO DOUBT IN MY MIND ABOUT THE VEHICLE THAT i BID ON AND WON AT THAT AUCTION YESTERDAY. MY WIFE AND ANOTHER FRIEND OF MINE THAT i HAD SHOWN THE WEB PAGE TO, SHOWING THAT i HAD WON THE BID ON THE VEHICLE JUST AS I HAD STATED, ARE WITNESS'S TO THAT. I'm not sure how this is even possible. But I suspect this-
I feel that they made a mistake in that they sold a vehicle that had a reserve price for LESS than the amount that the consignor is demending for their vehicle. And in billing me for it, they caught their mistake somehow and are trying to hold me responsible for paying for a vehicle that I would never bid on! I know what vehicle I bid on and I would not make any mistake about it, nor was I just dreaming and neither my wife or my friend were hallucinating when I showed them the vehicle I had purchased yesterday on the auctions website. I even re-confirmed the amount I had bid on the car this morning prior to going to the bank to withdraw the amount I needed in order to pay cash for it! But... somehow, this afternoon it no longer shows what it showed me this morning. So I went to find the history (windows 10 O.S.) of my web activity from yesterday and located the Auctions website, but when I click on the link, it takes me to an updated webpage (The same web page that it showed me when I went to find the lot number today when I was on the phone with the accountant) That does me no good. I need to recover the webpage as we saw it the day before, showing that I had won the vehicle that I bid on. My question is this: How can I recover that page from yesterday or access a recording of the live feed at the time of my participation in yesterdays auction??? I will not pay for someone else's mistake nor will I accept and pay for a vehicle that I had no part in bidding on. These people are trying to pull this off like I am unaware of what I am doing and unaware of which vehicle that I bid on , billing me for a vehicle that books close to the same amount that I bid and won yesterday for the purpose of avoiding having to pay the consignor the difference in the amount that they wanted for their automobile. I've been buying vehicles at these auctions for 30+ years. I am very experienced in auto auctions , participating and bidding online, and have full knowledge of of every aspect in how the auction process works. Certainly there must be a way for me to recover the web page that it showed me yesterday and this morning before they wrote up the invoice and then updated their web page today. PLEASE HELP ME! Crooked business is not something I condone nor want any involvement in whatsoever. There has to be some way to prove this, right?