The purpose of school training
The purpose of school training is to collect money or improve students' ability, which can only be felt from all aspects of the process. You can't say that the motivation of school training 100% is not good.
Importance of written laws and regulations
When you say "no credit, no diploma, retraining, delayed certification", it is very important to see the written regulations of the school. This is the real thing that the relevant authorities and the society discuss and evaluate.
The role of group strength
Personal strength is weak. If the group generally feels that the school is unfair (unreasonable/forced), it is better to organize everyone to reflect it to their superiors. But think about what the school thinks of you personally and the results. Once this matter is settled with the people in the school, there are still some despicable means.