The business model which can satisfy the customers needs always win! From this point I have checked most of the successful online businesses like cashkaro, paytm, coupondunia, shopify are used to attract the customers via coupons,offers, cashback, and deals.
While analyzing the online business sector cashback based affiliate marketing is found to be the most powerful business platform which is used to earn a high revenue!
You already know that cash back is a complete affiliate business model. Without any popular affiliate network connections you just can't run a cash back business website.