Contact Amazon and explain. They won't want it back. They will tell you to give it away, keep it or donate it to charity. If you look under the customer service contact information there is an option for them to call you. They do that immediately.
Hello I'm not sure what to put this under but here goes.
Last week my DH had his account hacked. All sorted now but I've now received a box of make up ordered by the people who had managed to get into our account. The problem is what to do with it. We obviously didn't order it. Any ideas?