What is Rebate Scheme?
Some multi million compnaies when sell their products to customers by
giving them an incentive such as Rebate Scheme.For example, one
company may sell million oil barrels but they also add 100,000 barrels
extra as in incentive for the buyers to buy. Rebate scheme sometines
is in form of money or extra products volume. How Rebate sheme works?
What is it exactly?

Walmart does this alot. Its very smart to do. Often you'll go there
and see a product advertised. buy 4 get 1 free. but if you go there
the day before. the price would be LESS. or perhaps. a price of
something is a dollar the next day it'll be advertised 5 for 5
dollars. You think you're getting a deal. The same thing happens in
OIL. People think they're getting a deal. Its just marketing.