HDFC Bank — dc intl pos txn markup+st I got deducted of more than 50,000 amount with this pos txn from my account

Address:

Sachin chawan,Ericsson India Global Services, Ericsson India Global Services, Bagamane WTC Mahadevapura

DC INTL POS TXN MARKUP+ST i got deducted of more than 50, 000 amount with this POS Txn from my account

My money is keeping on getting deducted from my account and i don't know where to go and complain during this locked down even customer support is not there