The "Offer Against Offer" badge, what is it for ?
The "Offer Again Offer" badge indicates to you on the object to be sold that you can propose a smaller amount than that proposed on the site. The seller can accept or refuse your proposal, or even offer you an intermediate price if he wishes.
To make your proposal click on the button "MAKE AN OFFER" and propose your amount.
If two users make an identical offer and it is accepted it is the first of two who made the offer will be chosen as the final buyer.