[mynameisvlad]

Amazon did this for a bit with some of their physical books, especially if bought from their retail stores. Looks like they shuttered this system in 2019: https://the-digital-reader.com/2019/09/30/amazon-is-shutting...

They do offer a discounted Audible book if you own the eBook: https://www.amazon.com/hz/audible/matchmaker