This article will explain how to ask for a price reduction
You can ask the gallery for a price reduction by clicking on "Make Offer". Then, type the offer price or select a discount percentage.
Note that the gallery can decide to have or not a "Make Offer" button when the price is visible.
If the price is hidden, click on "Contact Gallery" and ask to be informed about the price. Following negotiations will take place in the direct email communication between you and the gallery.