Freecharge Get Rs. 10 discount recharge of Rs. 20. 1. Recharge for Rs. 20 and apply coupan code 'GET10' 2. After applying code u have to pay Rs. 10 for Rs. 20 recharge. Code can be used upto 10 times per debit/credit means Rs. 100 cashback on Rs. 100. Valid only on FreeCharge Apps - Android, iOS& Windows Offer valid till 18th September 2014.