https://www.freecharge.in/

Valid on successfully adding money into FreeCharge Balance till 11th March 2016
Valid on minimum amount of Rs.100 added to your FreeCharge Balance
LOAD100
promocode has to be applied to avail cashback offer
Valid once per user/credit/debit card/mobile number
Valid only Credit Card/Debit Card transaction only
Cashback of Rs.20 will be credited to your FreeCharge Wallet which can be redeemed within 185 days from date of credit, and is non transferable
Not valid for amount added using FreeFund codes/Netbanking
Virtual Cards & Cards issued outside India will not be eligible for cashback / reward
We reserve the right to end any or all offers at our discretion without any prior notice

Does not work...Says invalid code..?

Try in App

only once per card ? its working..

works fine for me
check all t&c bro - http://offers.freecharge.com/LOAD100/

Only in App ?

Working Bro on App, Use at Apply Promo Code Section,

yeah..i have added in app & got cashback in app

Yes but not in terms that its on App

Yes I Got My 20 Rupee