Likely an offer for selected accounts only but I got an email offering 10 EUR off my first spend on Amazon Spain through the App.
You'll still need to pay shipping etc but still some good bargains to be had if you can knock 10 EUR off
From the email:
Enjoy a € 10 discount on your first purchase from the app. Minimum purchase of € 25.
Valid on purchases of products sold and shipped by Amazon made until July 27, 2021 and up to a maximum of 5,000 promotional codes. See conditions.
Add the following promotional code before processing your order: APP10