Bank Of Baroda — Money deducted twice

Address: Mumbai City, Maharashtra, 400080

I have made an online payment through my debit card through paytm app. I had borrowed my gaming zone coupon from little app. After my payment from debit card i received a msg my money been deducted then after 2 min i again got the same message that my money had been detected again. Rs.1373 had been deducted twice from my account as it should be done only once. I want my money back and want to know who is the culprit behind this who had deducted my money. I had been calling customer service no. Since afternoon but calls are not picked up by any one. I want you to solve my problem as soon as possible. Please do reply back.