Can the products on ebay be sold to amazon?

I want to buy an antique which is avaliable on ebay but there are none on amazon. I can't buy on ebay anymore because I made a mistake for bidding �25 and I lost all that money and never got it back so I stick to amazon. If I ask the ebay customer service about the product I want to purchase, would they be able to trade it with amazon or are they not supposed to switch between marketing??