If you read Clive Hughs' book, every second page has in BIG BOLD letters.
DO NOT PAY UP FRONT!
Now, with any course you have to pay something up front, but I guess he means no more than a module/test at a time. All up front is not something I would be very comfortable with (i.e. I would not do it for all the tea in China).
One question though. Will your bond money with Easy be ESCROW'd? If so then probably not a problem.