Interesting, BBB profile has this explanation:
On television, the company offers a promotion for a free computer learning cd. Consumers taking advantage of the free cd are offered upsells. If accepted, they require the consumer to return products to avoid being billed. If consumers do not return the products, they will continue to receive additional products and be billed for those products.
http://www.bbb.org/denver/business-reviews/computers-trainin...