Thanks for your reply - I think the reason that you can download both is that you are in Germany, where the bonus track edition is issued. There is nothing on the UK edition that isn't on the German one so there is nothing restricted from you. I still can't access it here.
Try the situation the other way round - it is possible to access the compilation Keep Calm & Unwind in the UK, but I'm betting you won't be able to download it in Germany
https://www.deezer.com/album/11045608