actauly, rebate has been very common in most mlm company. previously thye are known as global profit sharing or something and is only entitled by ppl in almost top level.
as for today, the profit sharing is open to all..
why do they use rebate? because it's illegal to use the term profit sharing, and it would cause lots of problems.

jst my 2cent la. like in LB (im not a member) ppl like u know who (SYN) get 1% profit sharing of LB global sales.

jst my 2cent, pls dont bash me