How to refund

This course is like watching a person tell a story. There are no pictures and how-tos to match what you're saying. It's hard to understand. It didn't teach me what software to use for the door is more suitable for which car. Even if you know the tuning principle, you don't know how to use the software. I would like to know how can I get a refund. Because it's not like the course I want to take

Best Bet would be to email them

However I personally think the courses have helped me in my tuning and engineering career

Goodluck!