That's just the lowest of lows. I'm really happy that you got most of your money back, though. I'd be completely devastated if I was scammed out of $500+.
I don't recommend buying courses, by the way, unless you read unbiased reviews on it online. No course should be more than $200 in my opinion. $661 seems pretty steep. You can buy SBI (Site Build It!) for half that cost AND get a hosted website complete with a .com domain, along with tons of helpful guides and the Brainstorm tool.