On trying to make a children's ebook free on the Amazon Kindle store

I've been trying to make one of my children's books free on the Amazon Kindle store. It's A Bundle of Dinosaurs: Three Dinosaur Stories , for younger children, and is already free on the Nook store, Kobo, iTunes and Smashwords - but on Amazon it's 99 cents, which is the lowest price they allow authors to sell their books at. I could make it free there for a short time by enrolling it on the KDP Select program; but that would mean I would have to withdraw it from all other ebook stores.

So instead I've been trying another way to make my book free on the Kindle Store. If I tell Amazon that it's free elsewhere, they are then supposed to match the price. There's even a button on the webpage for each Kindle book to notify Amazon of lower prices elsewhere.

The trouble is that this method doesn't seem to work. For the last six months I've been trying to get them to price-match and nothing has happened.

So if you'd like the free book for your Kindle, please get it from Smashwords here. The three separate dinosaur stories are also free to download or read online at my website Megamouse Books ; you can print off pdf colouring-book versions there as well.

And to the handful of people who have forked out 99 cents on the Kindle Store for a book that should be free - sorry! I have given the proceeds to a children's charity.

Later note: I've now given up the attempt. The book's no longer on Amazon, but is still free on Smashwords (as above), as well as
the Nook Book store, Kobo Books,
iTunes, etc etc...