Exactly. Point your browser to HTTP://www.amazon.de (in @Brookes case), log-in and select the Kindle version.@Brookes I think that’s just the Amazon app - you can’t buy Kindle books from the app (?). Try it from a desktop or your mobile browser.
If you ordered the paper copy, but it hasn’t shipped yet, Amazon will let you buy the Kindle version for only $3. You have to be logged into your Amazon account to see that option.