One license key for only one site for one year.
This plugin all data fetch from wp_posts table. So if your database wp_posts table contain Dutch language then it will generate xml file with Dutch language. I have to check your wp-admin for this problem. So please give me wp-admin access for this site soundcrushshop.com . Your license key is active for this site crestawebshop.com not soundcrushshop.com .
Please give me a good review. A review is very important for me. Some one try to destroy my business with bad review.
https://wordpress.org/support/view/plugin-reviews/woocommerce-to-google-merchant-center