purchased websites and no money was generated as they had promised

Hi all, I also bought one of Sean Roach's products at a seminar in Sydney in November 2011. Went home and tested it but found it had some mistakes in the simple stuff/website, then wonder what about the more complicated ones? Checked some reviews, found some bad reviews by disappointed customers and returned product.
Still waiting for refund... 6 weeks now, still no sign. Anyone has experience in getting refund from seminar people? Does it usually take this long? Going to dispute this transaction!
EVERYONE - don't buy anything that sounds too good to be true! I was sucked in by Sean's promo, eg endorsement by Obama etc. Should have checked him out before going to seminar... Beware! They pressure you to buy at seminars, to get their special price, etc. especially use trick of pay the whole amount, to save money!