Where Can I Buy Tiffany & Co. Silver Polish/cleaner?

a relative had bought me tiffany & co. silver polish spray its nearly all gone and its really good for my tiffany pieces, just wondered where can i buy this from? as my relative bought this from ebay and havnt seen any on there since, i also have emailed tiffany & co.genuine website and they have told me they do not supply it or make it they only the cloths. does any one know where to buy the spray from a big thankyou!