Professional course, lacks efficiency

Very good course, lots of information taught through this course. There were game materials, teaching support materials, and in-class activities provided for students to download throughout the course. The writer of this course was also very keen on communicating the importance of environmental protection, which is a significant challenge facing the current generation. It's worth spreading the message about how we can give back to the world rather than only take from it. The support normally responded quickly to my inquiries.
Three big concerns I had with this course:
1. During my course, there was a course update where all the course materials changed. All my past work had disappeared, including lesson journals. I wasted 6 hours redoing a few units because I wasn't allowed to move on.
2. Since the course update, the journal resubmissions at the end of every unit did not match with the journals we had written throughout the course. As a result, you were asking us to copy and paste our answers whereas in reality, we had to write fresh journal entries, sometimes about items which weren't included in the course.
3. It has now been almost 4 months since I completed my course and I still have not received my certificate. It's a ridiculous amount of time considering the $1000+ that this course costed. People lose out on a great many job opportunities in this period.