HDFC Bank — unknown charges added for undelivered credit card

Address:

Infocity Gandhinagar Gujarat, Gandhinagar, Gujarat, 382007

Hdfc bank has been charging me continuously from 3 months for a credit card which is not even delivered to me. I never used this credit card and still the bank is charging me money for unknown payments and fee.
I tried calling the bank customer care but everytime they are forwarding the query and hanging the call. I have also sent email to hdfc customer care but no luck. This is worst experience of holding slaary account and credit card with hdfc.