Paytm Mobile Solutions — refund not credited to account

Sir on 10 aug 18 i tried to book train ticket from njp to silchar, the booking failed but amount rs.3130/-deducted from my account. On making complaint to irctc they told that payment refunded by gate way paytm vide tr is-[protected] /bank ref id :8521522822831718061333 and payment has been settled but said am out not credited to my account till 30 aug 18. Paytm customer care also not responding. Please look in to the matter.