The bid is £1000.
I assume that the bidder is prepared to pay more. However, their bid will not increase unless somebody else outbids them.
The 'buy it now' price does not apply once a bid has been made and does not show on your listing.
Ebay's advice is essentially to ask the buyer to withdraw their bid.
Then you will be able to amend the BIN price and the buyer will be able to purchase the kitchen at your agreed price.
Details here: https://www.ebay.co.uk/help/selling/listings/creating-managing-listings/cancelling-listing?id=4146&s...
'If your listing isn't eligible to be ended early, you can contact any bidders to explain the situation and ask them to retract their bids. If the auction has finished, you can contact the winner and, if they agree, you can cancel the order.'
"There are two ways to be fooled. One is to believe what isn't true; the other is to refuse to believe what is true.”
Søren Kierkegaard, Danish philosopher (1813 - 1855)