wedding salon of manhasset

Ok, so i ordered my lazaro gown about a month ago. However, i have been having major anxiety about my dress, specifically the color and am thinking of making a change. I called the salon and asked them if they could contact the designer and see if the gown has been started. my question is, if it has been, will i lose my entire deposit? will they be able to stop production just until i get back down to the salon to look at swatches of the two colors i am debating on?