http://www.freecharge.in/ Use Promocode: METRO100 T&C: - Valid on successful METRO recharges only, till 15th October 2015 - Valid on Bill Payment of Rs.100 - METRO100 Promocode has to applied to avail cashback offer - Valid only Once per user/credit/debit card - Max cashback of Rs.100 - Cashback to be offered in the form of EGV which can be redeemed in the next 6 months - Cashback will be processed only for successful Bill Payments - Not valid on transactions done via FreeCharge Balance and Netbanking - Offer valid on FreeCharge App, Web & mWeb.