In other languages

The plugin's own wording comes in English, Spanish and French. The wording you type, the heading, description, button and link text, consent line, messages, winner email and each prize's label, is offered to WPML (with String Translation) and Polylang for translation: the plugin ships the wpml-config.xml both of them read. Translate it under WPML → String Translation or Languages → Translations, in the admin texts for trlw_settings.

Shoppers then see the popup in the language of the page they are on, and a spin carries that language with it, so the result message and the winner email are in it too. The plugin's own screens always show and save your original wording, never a translation.

The expiry reminder's subject, heading and body are offered for translation in the same way, but the reminder is sent later, by WooCommerce's scheduled actions rather than from a page, so it goes out in your site's main language whatever language the prize was won in. Until you edit them, they are stored as the plugin's own English and read in that language, so saving the Settings screen from wp-admin in another language does not change them.