Get Flat Rs. 9 Cashback on First Airtel Recharge/Bill Payment. This Coupon is valid for new users only. Make payment using Credit/Debit Card at payment gateway to avail the benefit of the Coupon. Click on VIEW CODE to use given coupon code. This airtel postpaid bill payment offers Code can be used upto 2 time per user. Coupon valid till 17 Jan 2018.