So it appears, that you can still take this course for free, and you only get a "digital certificate" of dubious value if you purchase the course. Am I missing something here?
How about this 7-day "trial"? all those courses seem pretty short (estimated 5 courses x 3 weeks x 4 hours = 60 hours), so if you do them full time and manage to finish within that 7-day trial would you receive certificate for free?