I have some issues with the app, whenever I recharge my airtel number with offers such as for eg Rs267 4gb 4g data 28days I am getting errors such a technical problem. When I called 121 they have told to recharge offers only via retail stores. But money got deducted from my both VISA card and Airtel money. I was told to call 400 but the airtel rep is speaking only in Hindi. :wall :wall