I don't have any contact of the seller. I discovered that web orders are processed by Digital River since I received the email for the confirmation order by that store. I already sent an email to the Sennheiser Customer care for the after sell assistance. Amazon sells refurbished and opened products with a special deal price. Sennheiser sells opened and not complete accessories at the same price. This is ridiculous. Anyway, since the package has been shipped from Germany, I think that this is a problem for Sennheiser and not for Digital River store.