Matrices work in a linear grid. When a person makes an investment a percentage of that investment goes towards purchasing electronics for free gifts. Once the required number of investments are made to complete the cycle the person who is currently cycling gets their free product and is removed from the list making way for the person in the next to cycle column to become the one that is currently cycling.

"What you are buying is our Ebooks.  You are not buying a spot into a tracking list.  This is only a added bonus for purchasing a Ebook from us.  Only you as a customer mean enough to us to offer free gifts like we do to all of you."