National Institute Of Open Schooling — refund payment of double payment

Address:

722205

My nios d. El. Ed ref no-d[protected]. First time i make payment 27/09/2017 but payment not clear. I wate 48 hours but payment not clear. For this i make another payment on 29/09/2017. But my first payment not refund. I contact my bank but bank told that first payment clear on 30/09/2017. So please refund my any one payment.
Sir please give me a posative responce