Airtel Prepaid Recharge Offer: Save Flat Rs.50 on Airtel Prepaid Recharges up to Rs.349. Minimum amount spend to avail the offer is Rs.10. The code can be redeemed once per user. Coupon redemption and Payment should be done on Android, Windows, iOS App or website. Offer valid till 30th November. The offer is applicable on Airtel prepaid operator only.