But what is not clear from OP's post is.  Did it come direct from amazon, or via the seller.   

Sure it may have had all the amazon rubbish on it,  but the seller may have purchased it from amazon weeks ago,  had it sitting in their stock, than on forwarded it on the sale to OP, without removing all the Amazon guff.

Not saying that is the case, but it is possible, Some clarification is required from OP.