I have emailed and faxed a cancelation for courses and tried to call to cancel when I didn't get a response. Tried to call but their phone lines didn't work. Some installation problem or upgrade. I finally reached Pablo or Paco but he said they would not refund my money. Honest companies may charge a small fee to cancel but they won't refund. Makes a person wonder why they trick people into signing a "credit card" receipt which is really a contract that you only have 3 days to cancle. If they were as great as they claim they wouldn't need these crooked tricks.