Freecharge 3G Rechrge Offer , Deals & Coupons Offer 1: [Valid on App on 1st Transaction] Rs. 50 cashback on Rs. 50 promo code: 3G50 Offer 2: [Valid on Web and App for all users] Rs. 20 cashback on Rs. 50 promo code: FREEG Terms and Conditions of promo code 3G50 Valid on successful 3G Recharges done till 23rd Mar 2016 only on the FreeCharge App Valid on min. 3G Recharge of Rs.50 or more. Flat cashback of Rs.50 3G50 promocode has to be applied to avail cashback offer Valid only once per User/Credit/Debit Card/Mobile Number Valid on Credit/Debit card & FreeCharge Balance transactions only Cashback 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 transactions done via Netbanking Not valid on Airtel transactions Offer not valid on virtual Cards and International Cards which are issued outside India.