Hi @israelmeirwi, sorry to hear that.

However, our plugin do send customer email when they subscribe for a product (see this screenshot – https://prnt.sc/lk62nx) and also send mail when the product is in stock (see this scrrenshot – https://prnt.sc/lk629m).

Please check the spam of the mailbox.

Regarding language, All language files apart from English are created by community members. So, if you don’t find the translation of inside the language file, you can translate the plugin using Loco Translator using, our guidelines available here – http://wc-marketplace.com/knowledgebase/wcmp-translation-guide/.