In case the minimum sales price is not achieved, your Collectable has not been (directly) sold and you will be informed about this. It is your decision to decide, within 48 hours, whether or not you want to sell your Collectable to the highest bidder, or not. The Collectables team will where applicable, also reach out to the highest bidder(s) in order to broker a mutually agreeably deal. 

Do note that at any time, during or after the auction, the seller is in his right to accept an offer which previously didn't hit the 'reserve' by lowering his minimum sales price.