the offer a trial of2 teeth whitening products for a minimal fee, if you don't return the product and cancel your order immediatelly, they then charge you the full $80 price for the product and send you another month supply with another $80 charge. There are also "foreign transaction fees" added to the credit card. They say it's explained in the "agreement" that you view on line when you send for the product. What a rip off of the customer!!!