The best thing to do with messages like this -- about orders you have not placed, shipments waiting that you don't know about is:
Mark as Junk Mail if not done already and delete.
Unfortunately you have done too much by trying to email them since they may get it and know that they have two live emails -- yours and your wife's!
Just watch for any more and delete without trying to do anything.
My wife gets them from time to time about packages that could not be delivered or, recently, from an approximation of her name but not her email address to her correct email address with an active link: You may be interested in this ......
Straight to the deletion folder on my email client.