HDFC Bank — Abruptly deduction of money from my bank account

Address:

HDFC BAPU BAZAR BRANCH UDAIPUR

Hello, my name is Priyanshi Panwar i am a holder of an international debit card, for every transaction or withdrawal that i do money gets deducted in a very high amount and that too without any mail. I want clarity that how much amount is being deducted for the withdrawal as on September 14, 2022 Rs. 2972 has been deducted twice from my account, on 30 September 2022, Rs. 1177 got deducted from my account and on 11 October, Rs. 6464 got deducted. when i checked in my bank statement the narration that was given was DC INTL POS TXN MARKUP, all this was charged without any information {mail or message} this all amount was deduced after many days of withdrawal, i request for the money to be refunded for the abrupt deduction