Airtel prepaid customers can avail 6GB of data, here's how Airtel prepaid customers can avail 6GB of data, here's how Prepaid subscribers of Airtel can avail up to 6GB of free data as a part of the ‘Free Data Coupons‘ offer currently run by Bharti Airtel. advertisement HIGHLIGHTS Airtel has a variety of unlimited combo prepaid plans with daily data benefits. You can visit the “My Coupons” section in the Airtel Thanks app to redeem the coupons. Airtel is offering 6GB of ‘free data coupons’ with some of its prepaid recharge plans. The free 6GB data in the form of 1GB data coupons will be credited to the subscriber’s account once you recharge using any of the eligible plans. The free data offer was first spotted by TelecomTalk.