HDFC Bank — credit card billing

Address:

Patna, Bihar, 800001

I'm your hdfc credit card customer
My card no last four digit is 6699.
From last three month I am trying to get my all purchasing bills or segregates bill from hdfc bank against my card no .They never send me bills .
I already visited personally in local branch in patna however I called customer care toll free no but they all are refuse to help me for getting my bills
I also pay as posssible money against my card no suddenly hdfc company employee called me on my no [protected] to pay 50000
It's not fair so want my all bills from starting to till today without intrest or late fee charges