Kotak Mahindra Bank — payment wrongly debited

Address:

380061

Rs. 500/-debited twice on[protected] and 10-
2-2018 bearing reference no. Pg [protected] and pg[protected] and showing description 2018012301470052321339 and 2018021001530053286931 respectively. I would like to know nature of such transactions and why debited. My. Savings account no. Is[protected]. My name is rajeshchandra kanaiyalal shah holding savings bank account with kotak bank since long.