If you are unable to attend the auction, leaving an absentee bid is a convenient alternative that ensures you don't miss out.
To place an absentee bid, register for the auction as if you were attending the sale.
Find the lot you want to purchase and click the blue 'Place absentee bid' button. Enter the highest amount you're willing to pay for the lot.
During the auction, the auctioneer will execute your bid at the lowest possible amount determined by the reserve price and any competing bids.
After the sale, if you have not been outbid, the auctioneer will contact you to let you know you have been successful.