I'm sorry to hear that, but this can only be some sort of confusion. I can confirm that you can sell any type of digital download, like a PDF etc. and sell it inside a course. The platform is translated in about 30 languages, here is the list https://help.onlinecoursehost.com/article/65-what-languages-are-supported-by-onlinecoursehost-com

The admin dashboard and the support team indeed work in English, but the frontend viewed by the students can be set to all those languages. The support team occasionally provides support to users in other languages via translators as well.