White Digital Media is a scam. They prey on small businesses to large corporations - if they call your company (and they have many telesales mostly men) hang up. They are based in the US, UK and now India. When they call they say you are going to get published in a magazine: Construction Digital, Manufacturing Digital, Food & Drink Digital, Energy Digital, Health Care Digital, Supply Chain Digital and whatever other names they can create. Then they ask for your supplier list which they then call and pressure through illegal methods to get them to buy an advertisement in one of these fictional print publications. They are created in digital format but charge you rates that are print. Regardless the distribution of these digital magazines is minimal.
Search online for "white digital media fraud" or "white digital media scam" and you will quickly find a ton of stories of people with similar scammed experiences.